agora inbox for pgsql-hackers@postgresql.org  
help / color / mirror / Atom feed
[PATCH v11 2/7] Row pattern recognition patch (parse/analysis).
327+ messages / 2 participants
[nested] [flat]

* [PATCH v11 2/7] Row pattern recognition patch (parse/analysis).
@ 2023-11-08 06:57 Tatsuo Ishii <ishii@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Tatsuo Ishii @ 2023-11-08 06:57 UTC (permalink / raw)

---
 src/backend/parser/parse_agg.c    |   7 +
 src/backend/parser/parse_clause.c | 278 +++++++++++++++++++++++++++++-
 src/backend/parser/parse_expr.c   |   4 +
 src/backend/parser/parse_func.c   |   3 +
 4 files changed, 291 insertions(+), 1 deletion(-)

diff --git a/src/backend/parser/parse_agg.c b/src/backend/parser/parse_agg.c
index 9bbad33fbd..28fb5e0d71 100644
--- a/src/backend/parser/parse_agg.c
+++ b/src/backend/parser/parse_agg.c
@@ -575,6 +575,10 @@ check_agglevels_and_constraints(ParseState *pstate, Node *expr)
 			errkind = true;
 			break;
 
+		case EXPR_KIND_RPR_DEFINE:
+			errkind = true;
+			break;
+
 			/*
 			 * There is intentionally no default: case here, so that the
 			 * compiler will warn if we add a new ParseExprKind without
@@ -964,6 +968,9 @@ transformWindowFuncCall(ParseState *pstate, WindowFunc *wfunc,
 		case EXPR_KIND_CYCLE_MARK:
 			errkind = true;
 			break;
+		case EXPR_KIND_RPR_DEFINE:
+			errkind = true;
+			break;
 
 			/*
 			 * There is intentionally no default: case here, so that the
diff --git a/src/backend/parser/parse_clause.c b/src/backend/parser/parse_clause.c
index 334b9b42bd..c5d3c10683 100644
--- a/src/backend/parser/parse_clause.c
+++ b/src/backend/parser/parse_clause.c
@@ -100,7 +100,10 @@ static WindowClause *findWindowClause(List *wclist, const char *name);
 static Node *transformFrameOffset(ParseState *pstate, int frameOptions,
 								  Oid rangeopfamily, Oid rangeopcintype, Oid *inRangeFunc,
 								  Node *clause);
-
+static void transformRPR(ParseState *pstate, WindowClause *wc, WindowDef *windef, List **targetlist);
+static List *transformDefineClause(ParseState *pstate, WindowClause *wc, WindowDef *windef, List **targetlist);
+static void transformPatternClause(ParseState *pstate, WindowClause *wc, WindowDef *windef);
+static List *transformMeasureClause(ParseState *pstate, WindowClause *wc, WindowDef *windef);
 
 /*
  * transformFromClause -
@@ -2950,6 +2953,10 @@ transformWindowDefinitions(ParseState *pstate,
 											 rangeopfamily, rangeopcintype,
 											 &wc->endInRangeFunc,
 											 windef->endOffset);
+
+		/* Process Row Pattern Recognition related clauses */
+		transformRPR(pstate, wc, windef, targetlist);
+
 		wc->runCondition = NIL;
 		wc->winref = winref;
 
@@ -3815,3 +3822,272 @@ transformFrameOffset(ParseState *pstate, int frameOptions,
 
 	return node;
 }
+
+/*
+ * transformRPR
+ *		Process Row Pattern Recognition related clauses
+ */
+static void
+transformRPR(ParseState *pstate, WindowClause *wc, WindowDef *windef, List **targetlist)
+{
+	/*
+	 * Window definition exists?
+	 */
+	if (windef == NULL)
+		return;
+
+	/*
+	 * Row Pattern Common Syntax clause exists?
+	 */
+	if (windef->rpCommonSyntax == NULL)
+		return;
+
+	/* Check Frame option. Frame must start at current row */
+	if ((wc->frameOptions & FRAMEOPTION_START_CURRENT_ROW) == 0)
+		ereport(ERROR,
+				(errcode(ERRCODE_SYNTAX_ERROR),
+				 errmsg("FRAME must start at current row when row patttern recognition is used")));
+
+	/* Transform AFTER MACH SKIP TO clause */
+	wc->rpSkipTo = windef->rpCommonSyntax->rpSkipTo;
+
+	/* Transform SEEK or INITIAL clause */
+	wc->initial = windef->rpCommonSyntax->initial;
+
+	/* Transform DEFINE clause into list of TargetEntry's */
+	wc->defineClause = transformDefineClause(pstate, wc, windef, targetlist);
+
+	/* Check PATTERN clause and copy to patternClause */
+	transformPatternClause(pstate, wc, windef);
+
+	/* Transform MEASURE clause */
+	transformMeasureClause(pstate, wc, windef);
+}
+
+/*
+ * transformDefineClause Process DEFINE clause and transform ResTarget into
+ *		list of TargetEntry.
+ *
+ * XXX we only support column reference in row pattern definition search
+ * condition, e.g. "price". <row pattern definition variable name>.<column
+ * reference> is not supported, e.g. "A.price".
+ */
+static List *
+transformDefineClause(ParseState *pstate, WindowClause *wc, WindowDef *windef, List **targetlist)
+{
+	/* DEFINE variable name initials */
+	static	char	*defineVariableInitials = "abcdefghijklmnopqrstuvwxyz";
+
+	ListCell		*lc, *l;
+	ResTarget		*restarget, *r;
+	List			*restargets;
+	List			*defineClause;
+	char			*name;
+	int				initialLen;
+	int				i;
+
+	/*
+	 * If Row Definition Common Syntax exists, DEFINE clause must exist.
+	 * (the raw parser should have already checked it.)
+	 */
+	Assert(windef->rpCommonSyntax->rpDefs != NULL);
+
+	/*
+	 * Check and add "A AS A IS TRUE" if pattern variable is missing in DEFINE
+	 * per the SQL standard.
+	 */
+	restargets = NIL;
+	foreach(lc, windef->rpCommonSyntax->rpPatterns)
+	{
+		A_Expr	*a;
+		bool	found = false;
+
+		if (!IsA(lfirst(lc), A_Expr))
+			ereport(ERROR,
+					errmsg("node type is not A_Expr"));
+
+		a = (A_Expr *)lfirst(lc);
+		name = strVal(a->lexpr);
+
+		foreach(l, windef->rpCommonSyntax->rpDefs)
+		{
+			restarget = (ResTarget *)lfirst(l);
+
+			if (!strcmp(restarget->name, name))
+			{
+				found = true;
+				break;
+			}
+		}
+
+		if (!found)
+		{
+			/*
+			 * "name" is missing. So create "name AS name IS TRUE" ResTarget
+			 * node and add it to the temporary list.
+			 */
+			A_Const	   *n;
+
+			restarget = makeNode(ResTarget);
+			n = makeNode(A_Const);
+			n->val.boolval.type = T_Boolean;
+			n->val.boolval.boolval = true;
+			n->location = -1;
+			restarget->name = pstrdup(name);
+			restarget->indirection = NIL;
+			restarget->val = (Node *)n;
+			restarget->location = -1;
+			restargets = lappend((List *)restargets, restarget);
+		}
+	}
+
+	if (list_length(restargets) >= 1)
+	{
+		/* add missing DEFINEs */
+		windef->rpCommonSyntax->rpDefs = list_concat(windef->rpCommonSyntax->rpDefs,
+													 restargets);
+		list_free(restargets);
+	}
+
+	/*
+	 * Check for duplicate row pattern definition variables.  The standard
+	 * requires that no two row pattern definition variable names shall be
+	 * equivalent.
+	 */
+	restargets = NIL;
+	foreach(lc, windef->rpCommonSyntax->rpDefs)
+	{
+		restarget = (ResTarget *)lfirst(lc);
+		name = restarget->name;
+
+		/*
+		 * Add DEFINE expression (Restarget->val) to the targetlist as a
+		 * TargetEntry if it does not exist yet. Planner will add the column
+		 * ref var node to the outer plan's target list later on. This makes
+		 * DEFINE expression could access the outer tuple while evaluating
+		 * PATTERN.
+		 *
+		 * XXX: adding whole expressions of DEFINE to the plan.targetlist is
+		 * not so good, because it's not necessary to evalute the expression
+		 * in the target list while running the plan. We should extract the
+		 * var nodes only then add them to the plan.targetlist.
+		 */
+		findTargetlistEntrySQL99(pstate, (Node *)restarget->val, targetlist, EXPR_KIND_RPR_DEFINE);
+
+		/*
+		 * Make sure that the row pattern definition search condition is a
+		 * boolean expression.
+		 */
+		transformWhereClause(pstate, restarget->val,
+							 EXPR_KIND_RPR_DEFINE, "DEFINE");
+
+		foreach(l, restargets)
+		{
+			char		*n;
+
+			r = (ResTarget *) lfirst(l);
+			n = r->name;
+
+			if (!strcmp(n, name))
+				ereport(ERROR,
+						(errcode(ERRCODE_SYNTAX_ERROR),
+						 errmsg("row pattern definition variable name \"%s\" appears more than once in DEFINE clause",
+								name),
+						 parser_errposition(pstate, exprLocation((Node *)r))));
+		}
+		restargets = lappend(restargets, restarget);
+	}
+	list_free(restargets);
+
+	/*
+	 * Create list of row pattern DEFINE variable name's initial.
+	 * We assign [a-z] to them (up to 26 variable names are allowed).
+	 */
+	restargets = NIL;
+	i = 0;
+	initialLen = strlen(defineVariableInitials);
+
+	foreach(lc, windef->rpCommonSyntax->rpDefs)
+	{
+		char	initial[2];
+
+		restarget = (ResTarget *)lfirst(lc);
+		name = restarget->name;
+
+		if (i >= initialLen)
+		{
+			ereport(ERROR,
+					(errcode(ERRCODE_SYNTAX_ERROR),
+					 errmsg("number of row pattern definition variable names exceeds %d", initialLen),
+					 parser_errposition(pstate, exprLocation((Node *)restarget))));
+		}
+		initial[0] = defineVariableInitials[i++];
+		initial[1] = '\0';
+		wc->defineInitial = lappend(wc->defineInitial, makeString(pstrdup(initial)));
+	}
+
+	defineClause = transformTargetList(pstate, windef->rpCommonSyntax->rpDefs,
+							   EXPR_KIND_RPR_DEFINE);
+
+	/* mark column origins */
+	markTargetListOrigins(pstate, defineClause);
+
+	/* mark all nodes in the DEFINE clause tree with collation information */
+	assign_expr_collations(pstate, (Node *)defineClause);
+
+	return defineClause;
+}
+
+/*
+ * transformPatternClause
+ *		Process PATTERN clause and return PATTERN clause in the raw parse tree
+ */
+static void
+transformPatternClause(ParseState *pstate, WindowClause *wc, WindowDef *windef)
+{
+	ListCell	*lc;
+
+	/*
+	 * Row Pattern Common Syntax clause exists?
+	 */
+	if (windef->rpCommonSyntax == NULL)
+		return;
+
+	wc->patternVariable = NIL;
+	wc->patternRegexp = NIL;
+	foreach(lc, windef->rpCommonSyntax->rpPatterns)
+	{
+		A_Expr	*a;
+		char	*name;
+		char	*regexp;
+
+		if (!IsA(lfirst(lc), A_Expr))
+			ereport(ERROR,
+					errmsg("node type is not A_Expr"));
+
+		a = (A_Expr *)lfirst(lc);
+		name = strVal(a->lexpr);
+
+		wc->patternVariable = lappend(wc->patternVariable, makeString(pstrdup(name)));
+		regexp = strVal(lfirst(list_head(a->name)));
+		wc->patternRegexp = lappend(wc->patternRegexp, makeString(pstrdup(regexp)));
+	}
+}
+
+/*
+ * transformMeasureClause
+ *		Process MEASURE clause
+ *	XXX MEASURE clause is not supported yet
+ */
+static List *
+transformMeasureClause(ParseState *pstate, WindowClause *wc, WindowDef *windef)
+{
+	if (windef->rowPatternMeasures == NIL)
+		return NIL;
+
+	ereport(ERROR,
+			(errcode(ERRCODE_SYNTAX_ERROR),
+			 errmsg("%s","MEASURE clause is not supported yet"),
+			 parser_errposition(pstate, exprLocation((Node *)windef->rowPatternMeasures))));
+	return NIL;
+}
diff --git a/src/backend/parser/parse_expr.c b/src/backend/parser/parse_expr.c
index 64c582c344..18b58ac263 100644
--- a/src/backend/parser/parse_expr.c
+++ b/src/backend/parser/parse_expr.c
@@ -557,6 +557,7 @@ transformColumnRef(ParseState *pstate, ColumnRef *cref)
 		case EXPR_KIND_COPY_WHERE:
 		case EXPR_KIND_GENERATED_COLUMN:
 		case EXPR_KIND_CYCLE_MARK:
+		case EXPR_KIND_RPR_DEFINE:
 			/* okay */
 			break;
 
@@ -1770,6 +1771,7 @@ transformSubLink(ParseState *pstate, SubLink *sublink)
 		case EXPR_KIND_VALUES:
 		case EXPR_KIND_VALUES_SINGLE:
 		case EXPR_KIND_CYCLE_MARK:
+		case EXPR_KIND_RPR_DEFINE:
 			/* okay */
 			break;
 		case EXPR_KIND_CHECK_CONSTRAINT:
@@ -3149,6 +3151,8 @@ ParseExprKindName(ParseExprKind exprKind)
 			return "GENERATED AS";
 		case EXPR_KIND_CYCLE_MARK:
 			return "CYCLE";
+		case EXPR_KIND_RPR_DEFINE:
+			return "DEFINE";
 
 			/*
 			 * There is intentionally no default: case here, so that the
diff --git a/src/backend/parser/parse_func.c b/src/backend/parser/parse_func.c
index 6c29471bb3..086431f91b 100644
--- a/src/backend/parser/parse_func.c
+++ b/src/backend/parser/parse_func.c
@@ -2656,6 +2656,9 @@ check_srf_call_placement(ParseState *pstate, Node *last_srf, int location)
 		case EXPR_KIND_CYCLE_MARK:
 			errkind = true;
 			break;
+		case EXPR_KIND_RPR_DEFINE:
+			errkind = true;
+			break;
 
 			/*
 			 * There is intentionally no default: case here, so that the
-- 
2.25.1


----Next_Part(Wed_Nov__8_16_37_05_2023_872)--
Content-Type: Text/X-Patch; charset=us-ascii
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="v11-0003-Row-pattern-recognition-patch-planner.patch"



^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--





^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--





^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--





^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--





^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 327+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 327+ messages in thread


end of thread, other threads:[~2026-07-08 21:39 UTC | newest]

Thread overview: 327+ messages (download: mbox mbox.gz follow: Atom feed)
-- links below jump to the message on this page --
2023-11-08 06:57 [PATCH v11 2/7] Row pattern recognition patch (parse/analysis). Tatsuo Ishii <ishii@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <nathan@postgresql.org>

This inbox is served by agora; see mirroring instructions
for how to clone and mirror all data and code used for this inbox