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[PATCH 2/5] Add va_header field to the varattrib_4b union.
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* [PATCH 2/5] Add va_header field to the varattrib_4b union.
@ 2026-03-11 13:53  Antonin Houska <[email protected]>
  0 siblings, 0 replies; 50+ messages in thread

From: Antonin Houska @ 2026-03-11 13:53 UTC (permalink / raw)

Since VARSIZE_ANY() may call VARSIZE_4B(), it's possible that the compiler
(when invoked with -Warray-bounds) complains if the argument of VARSIZE_ANY()
is actually smaller than what VARSIZE_4B() expects. With the new field,
VARSIZE_4B() can check the size w/o dereferencing varattrib_4b pointer.

The problem does not exist in the tree at the moment since the current users
of VARSIZE_ANY() pass a pointer to a dynamically allocated memory, so the
compiler has no idea about the memory available. However, in an upcoming
patch, it makes sense to pass a pointer to a local variable of "varlena"
type. In such a case, the compiler warning might appear because
sizeof(varlena) is lower than sizeof(varattrib_4b).
---
 src/include/varatt.h | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/include/varatt.h b/src/include/varatt.h
index 000bdf33b92..c54d5160c22 100644
--- a/src/include/varatt.h
+++ b/src/include/varatt.h
@@ -137,6 +137,10 @@ typedef union
 								 * compression method; see va_extinfo */
 		char		va_data[FLEXIBLE_ARRAY_MEMBER]; /* Compressed data */
 	}			va_compressed;
+	uint32		va_header;		/* Without this, compiler might raise warning
+								 * (-Warray-bounds) if the argument of
+								 * VARSIZE_ANY() is smaller than
+								 * varattrib_4b */
 } varattrib_4b;
 
 typedef struct
@@ -207,7 +211,7 @@ typedef struct
 
 /* VARSIZE_4B() should only be used on known-aligned data */
 #define VARSIZE_4B(PTR) \
-	(((const varattrib_4b *) (PTR))->va_4byte.va_header & 0x3FFFFFFF)
+	(*((const uint32 *) (PTR)) & 0x3FFFFFFF)
 #define VARSIZE_1B(PTR) \
 	(((const varattrib_1b *) (PTR))->va_header & 0x7F)
 #define VARTAG_1B_E(PTR) \
@@ -240,7 +244,7 @@ typedef struct
 
 /* VARSIZE_4B() should only be used on known-aligned data */
 #define VARSIZE_4B(PTR) \
-	((((const varattrib_4b *) (PTR))->va_4byte.va_header >> 2) & 0x3FFFFFFF)
+	((*((const uint32 *) (PTR)) >> 2) & 0x3FFFFFFF)
 #define VARSIZE_1B(PTR) \
 	((((const varattrib_1b *) (PTR))->va_header >> 1) & 0x7F)
 #define VARTAG_1B_E(PTR) \
-- 
2.47.3


--=-=-=
Content-Type: text/plain
Content-Disposition: attachment;
 filename=v41-0003-Add-CONCURRENTLY-option-to-REPACK-command.patch



^ permalink  raw  reply  [nested|flat] 50+ messages in thread

* [PATCH] change get_tables_to_repack_partitioned
@ 2026-07-09 14:55  Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 50+ messages in thread

From: Álvaro Herrera @ 2026-07-09 14:55 UTC (permalink / raw)

---
 src/backend/commands/repack.c | 127 +++++++++++++++++-----------------
 1 file changed, 65 insertions(+), 62 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index 02883fe34a4..b3589ceff51 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -169,8 +169,8 @@ static void copy_table_data(Relation NewHeap, Relation OldHeap, Relation OldInde
 							MultiXactId *pCutoffMulti);
 static List *get_tables_to_repack(RepackCommand cmd, bool usingindex,
 								  MemoryContext permcxt);
-static List *get_tables_to_repack_partitioned(RepackCommand cmd,
-											  Oid relid, bool rel_is_index,
+static List *get_tables_to_repack_partitioned(RepackStmt *stmt,
+											  Relation rel,
 											  MemoryContext permcxt);
 static bool repack_is_permitted_for_relation(RepackCommand cmd,
 											 Oid relid, Oid userid);
@@ -387,58 +387,8 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	}
 	else
 	{
-		Oid			relid;
-		bool		rel_is_index;
-
-		Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
-
-		/*
-		 * If USING INDEX was specified, resolve the index name now and pass
-		 * it down.
-		 */
-		if (stmt->usingindex)
-		{
-			/*
-			 * If no index name was specified when repacking a partitioned
-			 * table, punt for now.  Maybe we can improve this later.
-			 */
-			if (!stmt->indexname)
-			{
-				if (stmt->command == REPACK_COMMAND_CLUSTER)
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-							errmsg("there is no previously clustered index for table \"%s\"",
-								   RelationGetRelationName(rel)));
-				else
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-					/*- translator: first %s is name of a SQL command, eg. REPACK */
-							errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
-								   RepackCommandAsString(stmt->command),
-								   RelationGetRelationName(rel)));
-			}
-
-			relid = determine_clustered_index(rel, stmt->usingindex,
-											  stmt->indexname);
-			if (!OidIsValid(relid))
-				elog(ERROR, "unable to determine index to cluster on");
-			check_index_is_clusterable(rel, relid, AccessExclusiveLock);
-
-			rel_is_index = true;
-		}
-		else
-		{
-			relid = RelationGetRelid(rel);
-			rel_is_index = false;
-		}
-
-		rtcs = get_tables_to_repack_partitioned(stmt->command,
-												relid, rel_is_index,
-												repack_context);
-
-		/* close parent relation, releasing lock on it */
-		table_close(rel, AccessExclusiveLock);
-		rel = NULL;
+		rtcs = get_tables_to_repack_partitioned(stmt, rel, repack_context);
+		rel = NULL;			/* clobber no longer valid pointer */
 	}
 
 	/* Commit to get out of starting transaction */
@@ -2255,19 +2205,66 @@ get_tables_to_repack(RepackCommand cmd, bool usingindex, MemoryContext permcxt)
 }
 
 /*
- * Given a partitioned table or its index, return a list of RelToCluster for
- * all the leaf child tables/indexes.
+ * Resolve a partitioned table named as target of REPACK to the list of
+ * its partitions, and return it as a list of RelToCluster.
  *
- * 'rel_is_index' tells whether 'relid' is that of an index (true) or of the
- * owning relation.
+ * The partitioned table in question was already opened and locked by caller
+ * and is given as argument; it is closed and unlocked here before return.
  */
 static List *
-get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
-								 bool rel_is_index, MemoryContext permcxt)
+get_tables_to_repack_partitioned(RepackStmt *stmt, Relation rel,
+								 MemoryContext permcxt)
 {
+	Oid			relid;
+	bool		rel_is_index;
 	List	   *inhoids;
 	List	   *rtcs = NIL;
 
+	Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
+	Assert(CheckRelationLockedByMe(rel, AccessExclusiveLock, false));
+
+	/*
+	 * We find the list of tables by looking for inheritors.  If USING INDEX
+	 * was given, look for inheritors of that index, whose name we resolve now.
+	 *
+	 * Otherwise we look for inheritors of the table itself.
+	 */
+	if (stmt->usingindex)
+	{
+		/*
+		 * If no index name was specified when repacking a partitioned
+		 * table, punt for now.  Maybe we can improve this later.
+		 */
+		if (!stmt->indexname)
+		{
+			if (stmt->command == REPACK_COMMAND_CLUSTER)
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						errmsg("there is no previously clustered index for table \"%s\"",
+							   RelationGetRelationName(rel)));
+			else
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						/*- translator: first %s is name of a SQL command, eg. REPACK */
+						errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
+							   RepackCommandAsString(stmt->command),
+							   RelationGetRelationName(rel)));
+		}
+
+		relid = determine_clustered_index(rel, stmt->usingindex,
+										  stmt->indexname);
+		if (!OidIsValid(relid))
+			elog(ERROR, "unable to determine index to cluster on");
+		check_index_is_clusterable(rel, relid, AccessExclusiveLock);
+
+		rel_is_index = true;
+	}
+	else
+	{
+		relid = RelationGetRelid(rel);
+		rel_is_index = false;
+	}
+
 	/*
 	 * Do not lock the children until they're processed.  Note that we do hold
 	 * a lock on the parent partitioned table.
@@ -2286,7 +2283,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 			if (get_rel_relkind(child_oid) != RELKIND_INDEX)
 				continue;
 
-			table_oid = IndexGetRelation(child_oid, false);
+			table_oid = IndexGetRelation(child_oid, true);
+			if (!OidIsValid(table_oid))
+				continue;
 			index_oid = child_oid;
 		}
 		else
@@ -2304,7 +2303,8 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		 * leaf partition despite having them on the partitioned table.  Skip
 		 * if so.
 		 */
-		if (!repack_is_permitted_for_relation(cmd, table_oid, GetUserId()))
+		if (!repack_is_permitted_for_relation(stmt->command, table_oid,
+											  GetUserId()))
 			continue;
 
 		/* Use a permanent memory context for the result list */
@@ -2316,6 +2316,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		MemoryContextSwitchTo(oldcxt);
 	}
 
+	/* close parent relation, releasing lock on it */
+	table_close(rel, AccessExclusiveLock);
+
 	return rtcs;
 }
 
-- 
2.47.3


--f4uihmgjmvhgvze3--





^ permalink  raw  reply  [nested|flat] 50+ messages in thread

* [PATCH] change get_tables_to_repack_partitioned
@ 2026-07-09 14:55  Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 50+ messages in thread

From: Álvaro Herrera @ 2026-07-09 14:55 UTC (permalink / raw)

---
 src/backend/commands/repack.c | 127 +++++++++++++++++-----------------
 1 file changed, 65 insertions(+), 62 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index 02883fe34a4..b3589ceff51 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -169,8 +169,8 @@ static void copy_table_data(Relation NewHeap, Relation OldHeap, Relation OldInde
 							MultiXactId *pCutoffMulti);
 static List *get_tables_to_repack(RepackCommand cmd, bool usingindex,
 								  MemoryContext permcxt);
-static List *get_tables_to_repack_partitioned(RepackCommand cmd,
-											  Oid relid, bool rel_is_index,
+static List *get_tables_to_repack_partitioned(RepackStmt *stmt,
+											  Relation rel,
 											  MemoryContext permcxt);
 static bool repack_is_permitted_for_relation(RepackCommand cmd,
 											 Oid relid, Oid userid);
@@ -387,58 +387,8 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	}
 	else
 	{
-		Oid			relid;
-		bool		rel_is_index;
-
-		Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
-
-		/*
-		 * If USING INDEX was specified, resolve the index name now and pass
-		 * it down.
-		 */
-		if (stmt->usingindex)
-		{
-			/*
-			 * If no index name was specified when repacking a partitioned
-			 * table, punt for now.  Maybe we can improve this later.
-			 */
-			if (!stmt->indexname)
-			{
-				if (stmt->command == REPACK_COMMAND_CLUSTER)
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-							errmsg("there is no previously clustered index for table \"%s\"",
-								   RelationGetRelationName(rel)));
-				else
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-					/*- translator: first %s is name of a SQL command, eg. REPACK */
-							errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
-								   RepackCommandAsString(stmt->command),
-								   RelationGetRelationName(rel)));
-			}
-
-			relid = determine_clustered_index(rel, stmt->usingindex,
-											  stmt->indexname);
-			if (!OidIsValid(relid))
-				elog(ERROR, "unable to determine index to cluster on");
-			check_index_is_clusterable(rel, relid, AccessExclusiveLock);
-
-			rel_is_index = true;
-		}
-		else
-		{
-			relid = RelationGetRelid(rel);
-			rel_is_index = false;
-		}
-
-		rtcs = get_tables_to_repack_partitioned(stmt->command,
-												relid, rel_is_index,
-												repack_context);
-
-		/* close parent relation, releasing lock on it */
-		table_close(rel, AccessExclusiveLock);
-		rel = NULL;
+		rtcs = get_tables_to_repack_partitioned(stmt, rel, repack_context);
+		rel = NULL;			/* clobber no longer valid pointer */
 	}
 
 	/* Commit to get out of starting transaction */
@@ -2255,19 +2205,66 @@ get_tables_to_repack(RepackCommand cmd, bool usingindex, MemoryContext permcxt)
 }
 
 /*
- * Given a partitioned table or its index, return a list of RelToCluster for
- * all the leaf child tables/indexes.
+ * Resolve a partitioned table named as target of REPACK to the list of
+ * its partitions, and return it as a list of RelToCluster.
  *
- * 'rel_is_index' tells whether 'relid' is that of an index (true) or of the
- * owning relation.
+ * The partitioned table in question was already opened and locked by caller
+ * and is given as argument; it is closed and unlocked here before return.
  */
 static List *
-get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
-								 bool rel_is_index, MemoryContext permcxt)
+get_tables_to_repack_partitioned(RepackStmt *stmt, Relation rel,
+								 MemoryContext permcxt)
 {
+	Oid			relid;
+	bool		rel_is_index;
 	List	   *inhoids;
 	List	   *rtcs = NIL;
 
+	Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
+	Assert(CheckRelationLockedByMe(rel, AccessExclusiveLock, false));
+
+	/*
+	 * We find the list of tables by looking for inheritors.  If USING INDEX
+	 * was given, look for inheritors of that index, whose name we resolve now.
+	 *
+	 * Otherwise we look for inheritors of the table itself.
+	 */
+	if (stmt->usingindex)
+	{
+		/*
+		 * If no index name was specified when repacking a partitioned
+		 * table, punt for now.  Maybe we can improve this later.
+		 */
+		if (!stmt->indexname)
+		{
+			if (stmt->command == REPACK_COMMAND_CLUSTER)
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						errmsg("there is no previously clustered index for table \"%s\"",
+							   RelationGetRelationName(rel)));
+			else
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						/*- translator: first %s is name of a SQL command, eg. REPACK */
+						errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
+							   RepackCommandAsString(stmt->command),
+							   RelationGetRelationName(rel)));
+		}
+
+		relid = determine_clustered_index(rel, stmt->usingindex,
+										  stmt->indexname);
+		if (!OidIsValid(relid))
+			elog(ERROR, "unable to determine index to cluster on");
+		check_index_is_clusterable(rel, relid, AccessExclusiveLock);
+
+		rel_is_index = true;
+	}
+	else
+	{
+		relid = RelationGetRelid(rel);
+		rel_is_index = false;
+	}
+
 	/*
 	 * Do not lock the children until they're processed.  Note that we do hold
 	 * a lock on the parent partitioned table.
@@ -2286,7 +2283,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 			if (get_rel_relkind(child_oid) != RELKIND_INDEX)
 				continue;
 
-			table_oid = IndexGetRelation(child_oid, false);
+			table_oid = IndexGetRelation(child_oid, true);
+			if (!OidIsValid(table_oid))
+				continue;
 			index_oid = child_oid;
 		}
 		else
@@ -2304,7 +2303,8 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		 * leaf partition despite having them on the partitioned table.  Skip
 		 * if so.
 		 */
-		if (!repack_is_permitted_for_relation(cmd, table_oid, GetUserId()))
+		if (!repack_is_permitted_for_relation(stmt->command, table_oid,
+											  GetUserId()))
 			continue;
 
 		/* Use a permanent memory context for the result list */
@@ -2316,6 +2316,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		MemoryContextSwitchTo(oldcxt);
 	}
 
+	/* close parent relation, releasing lock on it */
+	table_close(rel, AccessExclusiveLock);
+
 	return rtcs;
 }
 
-- 
2.47.3


--f4uihmgjmvhgvze3--





^ permalink  raw  reply  [nested|flat] 50+ messages in thread

* [PATCH] change get_tables_to_repack_partitioned
@ 2026-07-09 14:55  Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 50+ messages in thread

From: Álvaro Herrera @ 2026-07-09 14:55 UTC (permalink / raw)

---
 src/backend/commands/repack.c | 127 +++++++++++++++++-----------------
 1 file changed, 65 insertions(+), 62 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index 02883fe34a4..b3589ceff51 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -169,8 +169,8 @@ static void copy_table_data(Relation NewHeap, Relation OldHeap, Relation OldInde
 							MultiXactId *pCutoffMulti);
 static List *get_tables_to_repack(RepackCommand cmd, bool usingindex,
 								  MemoryContext permcxt);
-static List *get_tables_to_repack_partitioned(RepackCommand cmd,
-											  Oid relid, bool rel_is_index,
+static List *get_tables_to_repack_partitioned(RepackStmt *stmt,
+											  Relation rel,
 											  MemoryContext permcxt);
 static bool repack_is_permitted_for_relation(RepackCommand cmd,
 											 Oid relid, Oid userid);
@@ -387,58 +387,8 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	}
 	else
 	{
-		Oid			relid;
-		bool		rel_is_index;
-
-		Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
-
-		/*
-		 * If USING INDEX was specified, resolve the index name now and pass
-		 * it down.
-		 */
-		if (stmt->usingindex)
-		{
-			/*
-			 * If no index name was specified when repacking a partitioned
-			 * table, punt for now.  Maybe we can improve this later.
-			 */
-			if (!stmt->indexname)
-			{
-				if (stmt->command == REPACK_COMMAND_CLUSTER)
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-							errmsg("there is no previously clustered index for table \"%s\"",
-								   RelationGetRelationName(rel)));
-				else
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-					/*- translator: first %s is name of a SQL command, eg. REPACK */
-							errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
-								   RepackCommandAsString(stmt->command),
-								   RelationGetRelationName(rel)));
-			}
-
-			relid = determine_clustered_index(rel, stmt->usingindex,
-											  stmt->indexname);
-			if (!OidIsValid(relid))
-				elog(ERROR, "unable to determine index to cluster on");
-			check_index_is_clusterable(rel, relid, AccessExclusiveLock);
-
-			rel_is_index = true;
-		}
-		else
-		{
-			relid = RelationGetRelid(rel);
-			rel_is_index = false;
-		}
-
-		rtcs = get_tables_to_repack_partitioned(stmt->command,
-												relid, rel_is_index,
-												repack_context);
-
-		/* close parent relation, releasing lock on it */
-		table_close(rel, AccessExclusiveLock);
-		rel = NULL;
+		rtcs = get_tables_to_repack_partitioned(stmt, rel, repack_context);
+		rel = NULL;			/* clobber no longer valid pointer */
 	}
 
 	/* Commit to get out of starting transaction */
@@ -2255,19 +2205,66 @@ get_tables_to_repack(RepackCommand cmd, bool usingindex, MemoryContext permcxt)
 }
 
 /*
- * Given a partitioned table or its index, return a list of RelToCluster for
- * all the leaf child tables/indexes.
+ * Resolve a partitioned table named as target of REPACK to the list of
+ * its partitions, and return it as a list of RelToCluster.
  *
- * 'rel_is_index' tells whether 'relid' is that of an index (true) or of the
- * owning relation.
+ * The partitioned table in question was already opened and locked by caller
+ * and is given as argument; it is closed and unlocked here before return.
  */
 static List *
-get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
-								 bool rel_is_index, MemoryContext permcxt)
+get_tables_to_repack_partitioned(RepackStmt *stmt, Relation rel,
+								 MemoryContext permcxt)
 {
+	Oid			relid;
+	bool		rel_is_index;
 	List	   *inhoids;
 	List	   *rtcs = NIL;
 
+	Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
+	Assert(CheckRelationLockedByMe(rel, AccessExclusiveLock, false));
+
+	/*
+	 * We find the list of tables by looking for inheritors.  If USING INDEX
+	 * was given, look for inheritors of that index, whose name we resolve now.
+	 *
+	 * Otherwise we look for inheritors of the table itself.
+	 */
+	if (stmt->usingindex)
+	{
+		/*
+		 * If no index name was specified when repacking a partitioned
+		 * table, punt for now.  Maybe we can improve this later.
+		 */
+		if (!stmt->indexname)
+		{
+			if (stmt->command == REPACK_COMMAND_CLUSTER)
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						errmsg("there is no previously clustered index for table \"%s\"",
+							   RelationGetRelationName(rel)));
+			else
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						/*- translator: first %s is name of a SQL command, eg. REPACK */
+						errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
+							   RepackCommandAsString(stmt->command),
+							   RelationGetRelationName(rel)));
+		}
+
+		relid = determine_clustered_index(rel, stmt->usingindex,
+										  stmt->indexname);
+		if (!OidIsValid(relid))
+			elog(ERROR, "unable to determine index to cluster on");
+		check_index_is_clusterable(rel, relid, AccessExclusiveLock);
+
+		rel_is_index = true;
+	}
+	else
+	{
+		relid = RelationGetRelid(rel);
+		rel_is_index = false;
+	}
+
 	/*
 	 * Do not lock the children until they're processed.  Note that we do hold
 	 * a lock on the parent partitioned table.
@@ -2286,7 +2283,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 			if (get_rel_relkind(child_oid) != RELKIND_INDEX)
 				continue;
 
-			table_oid = IndexGetRelation(child_oid, false);
+			table_oid = IndexGetRelation(child_oid, true);
+			if (!OidIsValid(table_oid))
+				continue;
 			index_oid = child_oid;
 		}
 		else
@@ -2304,7 +2303,8 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		 * leaf partition despite having them on the partitioned table.  Skip
 		 * if so.
 		 */
-		if (!repack_is_permitted_for_relation(cmd, table_oid, GetUserId()))
+		if (!repack_is_permitted_for_relation(stmt->command, table_oid,
+											  GetUserId()))
 			continue;
 
 		/* Use a permanent memory context for the result list */
@@ -2316,6 +2316,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		MemoryContextSwitchTo(oldcxt);
 	}
 
+	/* close parent relation, releasing lock on it */
+	table_close(rel, AccessExclusiveLock);
+
 	return rtcs;
 }
 
-- 
2.47.3


--f4uihmgjmvhgvze3--





^ permalink  raw  reply  [nested|flat] 50+ messages in thread

* [PATCH] change get_tables_to_repack_partitioned
@ 2026-07-09 14:55  Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 50+ messages in thread

From: Álvaro Herrera @ 2026-07-09 14:55 UTC (permalink / raw)

---
 src/backend/commands/repack.c | 127 +++++++++++++++++-----------------
 1 file changed, 65 insertions(+), 62 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index 02883fe34a4..b3589ceff51 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -169,8 +169,8 @@ static void copy_table_data(Relation NewHeap, Relation OldHeap, Relation OldInde
 							MultiXactId *pCutoffMulti);
 static List *get_tables_to_repack(RepackCommand cmd, bool usingindex,
 								  MemoryContext permcxt);
-static List *get_tables_to_repack_partitioned(RepackCommand cmd,
-											  Oid relid, bool rel_is_index,
+static List *get_tables_to_repack_partitioned(RepackStmt *stmt,
+											  Relation rel,
 											  MemoryContext permcxt);
 static bool repack_is_permitted_for_relation(RepackCommand cmd,
 											 Oid relid, Oid userid);
@@ -387,58 +387,8 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	}
 	else
 	{
-		Oid			relid;
-		bool		rel_is_index;
-
-		Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
-
-		/*
-		 * If USING INDEX was specified, resolve the index name now and pass
-		 * it down.
-		 */
-		if (stmt->usingindex)
-		{
-			/*
-			 * If no index name was specified when repacking a partitioned
-			 * table, punt for now.  Maybe we can improve this later.
-			 */
-			if (!stmt->indexname)
-			{
-				if (stmt->command == REPACK_COMMAND_CLUSTER)
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-							errmsg("there is no previously clustered index for table \"%s\"",
-								   RelationGetRelationName(rel)));
-				else
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-					/*- translator: first %s is name of a SQL command, eg. REPACK */
-							errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
-								   RepackCommandAsString(stmt->command),
-								   RelationGetRelationName(rel)));
-			}
-
-			relid = determine_clustered_index(rel, stmt->usingindex,
-											  stmt->indexname);
-			if (!OidIsValid(relid))
-				elog(ERROR, "unable to determine index to cluster on");
-			check_index_is_clusterable(rel, relid, AccessExclusiveLock);
-
-			rel_is_index = true;
-		}
-		else
-		{
-			relid = RelationGetRelid(rel);
-			rel_is_index = false;
-		}
-
-		rtcs = get_tables_to_repack_partitioned(stmt->command,
-												relid, rel_is_index,
-												repack_context);
-
-		/* close parent relation, releasing lock on it */
-		table_close(rel, AccessExclusiveLock);
-		rel = NULL;
+		rtcs = get_tables_to_repack_partitioned(stmt, rel, repack_context);
+		rel = NULL;			/* clobber no longer valid pointer */
 	}
 
 	/* Commit to get out of starting transaction */
@@ -2255,19 +2205,66 @@ get_tables_to_repack(RepackCommand cmd, bool usingindex, MemoryContext permcxt)
 }
 
 /*
- * Given a partitioned table or its index, return a list of RelToCluster for
- * all the leaf child tables/indexes.
+ * Resolve a partitioned table named as target of REPACK to the list of
+ * its partitions, and return it as a list of RelToCluster.
  *
- * 'rel_is_index' tells whether 'relid' is that of an index (true) or of the
- * owning relation.
+ * The partitioned table in question was already opened and locked by caller
+ * and is given as argument; it is closed and unlocked here before return.
  */
 static List *
-get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
-								 bool rel_is_index, MemoryContext permcxt)
+get_tables_to_repack_partitioned(RepackStmt *stmt, Relation rel,
+								 MemoryContext permcxt)
 {
+	Oid			relid;
+	bool		rel_is_index;
 	List	   *inhoids;
 	List	   *rtcs = NIL;
 
+	Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
+	Assert(CheckRelationLockedByMe(rel, AccessExclusiveLock, false));
+
+	/*
+	 * We find the list of tables by looking for inheritors.  If USING INDEX
+	 * was given, look for inheritors of that index, whose name we resolve now.
+	 *
+	 * Otherwise we look for inheritors of the table itself.
+	 */
+	if (stmt->usingindex)
+	{
+		/*
+		 * If no index name was specified when repacking a partitioned
+		 * table, punt for now.  Maybe we can improve this later.
+		 */
+		if (!stmt->indexname)
+		{
+			if (stmt->command == REPACK_COMMAND_CLUSTER)
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						errmsg("there is no previously clustered index for table \"%s\"",
+							   RelationGetRelationName(rel)));
+			else
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						/*- translator: first %s is name of a SQL command, eg. REPACK */
+						errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
+							   RepackCommandAsString(stmt->command),
+							   RelationGetRelationName(rel)));
+		}
+
+		relid = determine_clustered_index(rel, stmt->usingindex,
+										  stmt->indexname);
+		if (!OidIsValid(relid))
+			elog(ERROR, "unable to determine index to cluster on");
+		check_index_is_clusterable(rel, relid, AccessExclusiveLock);
+
+		rel_is_index = true;
+	}
+	else
+	{
+		relid = RelationGetRelid(rel);
+		rel_is_index = false;
+	}
+
 	/*
 	 * Do not lock the children until they're processed.  Note that we do hold
 	 * a lock on the parent partitioned table.
@@ -2286,7 +2283,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 			if (get_rel_relkind(child_oid) != RELKIND_INDEX)
 				continue;
 
-			table_oid = IndexGetRelation(child_oid, false);
+			table_oid = IndexGetRelation(child_oid, true);
+			if (!OidIsValid(table_oid))
+				continue;
 			index_oid = child_oid;
 		}
 		else
@@ -2304,7 +2303,8 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		 * leaf partition despite having them on the partitioned table.  Skip
 		 * if so.
 		 */
-		if (!repack_is_permitted_for_relation(cmd, table_oid, GetUserId()))
+		if (!repack_is_permitted_for_relation(stmt->command, table_oid,
+											  GetUserId()))
 			continue;
 
 		/* Use a permanent memory context for the result list */
@@ -2316,6 +2316,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		MemoryContextSwitchTo(oldcxt);
 	}
 
+	/* close parent relation, releasing lock on it */
+	table_close(rel, AccessExclusiveLock);
+
 	return rtcs;
 }
 
-- 
2.47.3


--f4uihmgjmvhgvze3--





^ permalink  raw  reply  [nested|flat] 50+ messages in thread

* [PATCH] change get_tables_to_repack_partitioned
@ 2026-07-09 14:55  Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 50+ messages in thread

From: Álvaro Herrera @ 2026-07-09 14:55 UTC (permalink / raw)

---
 src/backend/commands/repack.c | 127 +++++++++++++++++-----------------
 1 file changed, 65 insertions(+), 62 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index 02883fe34a4..b3589ceff51 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -169,8 +169,8 @@ static void copy_table_data(Relation NewHeap, Relation OldHeap, Relation OldInde
 							MultiXactId *pCutoffMulti);
 static List *get_tables_to_repack(RepackCommand cmd, bool usingindex,
 								  MemoryContext permcxt);
-static List *get_tables_to_repack_partitioned(RepackCommand cmd,
-											  Oid relid, bool rel_is_index,
+static List *get_tables_to_repack_partitioned(RepackStmt *stmt,
+											  Relation rel,
 											  MemoryContext permcxt);
 static bool repack_is_permitted_for_relation(RepackCommand cmd,
 											 Oid relid, Oid userid);
@@ -387,58 +387,8 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	}
 	else
 	{
-		Oid			relid;
-		bool		rel_is_index;
-
-		Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
-
-		/*
-		 * If USING INDEX was specified, resolve the index name now and pass
-		 * it down.
-		 */
-		if (stmt->usingindex)
-		{
-			/*
-			 * If no index name was specified when repacking a partitioned
-			 * table, punt for now.  Maybe we can improve this later.
-			 */
-			if (!stmt->indexname)
-			{
-				if (stmt->command == REPACK_COMMAND_CLUSTER)
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-							errmsg("there is no previously clustered index for table \"%s\"",
-								   RelationGetRelationName(rel)));
-				else
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-					/*- translator: first %s is name of a SQL command, eg. REPACK */
-							errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
-								   RepackCommandAsString(stmt->command),
-								   RelationGetRelationName(rel)));
-			}
-
-			relid = determine_clustered_index(rel, stmt->usingindex,
-											  stmt->indexname);
-			if (!OidIsValid(relid))
-				elog(ERROR, "unable to determine index to cluster on");
-			check_index_is_clusterable(rel, relid, AccessExclusiveLock);
-
-			rel_is_index = true;
-		}
-		else
-		{
-			relid = RelationGetRelid(rel);
-			rel_is_index = false;
-		}
-
-		rtcs = get_tables_to_repack_partitioned(stmt->command,
-												relid, rel_is_index,
-												repack_context);
-
-		/* close parent relation, releasing lock on it */
-		table_close(rel, AccessExclusiveLock);
-		rel = NULL;
+		rtcs = get_tables_to_repack_partitioned(stmt, rel, repack_context);
+		rel = NULL;			/* clobber no longer valid pointer */
 	}
 
 	/* Commit to get out of starting transaction */
@@ -2255,19 +2205,66 @@ get_tables_to_repack(RepackCommand cmd, bool usingindex, MemoryContext permcxt)
 }
 
 /*
- * Given a partitioned table or its index, return a list of RelToCluster for
- * all the leaf child tables/indexes.
+ * Resolve a partitioned table named as target of REPACK to the list of
+ * its partitions, and return it as a list of RelToCluster.
  *
- * 'rel_is_index' tells whether 'relid' is that of an index (true) or of the
- * owning relation.
+ * The partitioned table in question was already opened and locked by caller
+ * and is given as argument; it is closed and unlocked here before return.
  */
 static List *
-get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
-								 bool rel_is_index, MemoryContext permcxt)
+get_tables_to_repack_partitioned(RepackStmt *stmt, Relation rel,
+								 MemoryContext permcxt)
 {
+	Oid			relid;
+	bool		rel_is_index;
 	List	   *inhoids;
 	List	   *rtcs = NIL;
 
+	Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
+	Assert(CheckRelationLockedByMe(rel, AccessExclusiveLock, false));
+
+	/*
+	 * We find the list of tables by looking for inheritors.  If USING INDEX
+	 * was given, look for inheritors of that index, whose name we resolve now.
+	 *
+	 * Otherwise we look for inheritors of the table itself.
+	 */
+	if (stmt->usingindex)
+	{
+		/*
+		 * If no index name was specified when repacking a partitioned
+		 * table, punt for now.  Maybe we can improve this later.
+		 */
+		if (!stmt->indexname)
+		{
+			if (stmt->command == REPACK_COMMAND_CLUSTER)
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						errmsg("there is no previously clustered index for table \"%s\"",
+							   RelationGetRelationName(rel)));
+			else
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						/*- translator: first %s is name of a SQL command, eg. REPACK */
+						errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
+							   RepackCommandAsString(stmt->command),
+							   RelationGetRelationName(rel)));
+		}
+
+		relid = determine_clustered_index(rel, stmt->usingindex,
+										  stmt->indexname);
+		if (!OidIsValid(relid))
+			elog(ERROR, "unable to determine index to cluster on");
+		check_index_is_clusterable(rel, relid, AccessExclusiveLock);
+
+		rel_is_index = true;
+	}
+	else
+	{
+		relid = RelationGetRelid(rel);
+		rel_is_index = false;
+	}
+
 	/*
 	 * Do not lock the children until they're processed.  Note that we do hold
 	 * a lock on the parent partitioned table.
@@ -2286,7 +2283,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 			if (get_rel_relkind(child_oid) != RELKIND_INDEX)
 				continue;
 
-			table_oid = IndexGetRelation(child_oid, false);
+			table_oid = IndexGetRelation(child_oid, true);
+			if (!OidIsValid(table_oid))
+				continue;
 			index_oid = child_oid;
 		}
 		else
@@ -2304,7 +2303,8 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		 * leaf partition despite having them on the partitioned table.  Skip
 		 * if so.
 		 */
-		if (!repack_is_permitted_for_relation(cmd, table_oid, GetUserId()))
+		if (!repack_is_permitted_for_relation(stmt->command, table_oid,
+											  GetUserId()))
 			continue;
 
 		/* Use a permanent memory context for the result list */
@@ -2316,6 +2316,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		MemoryContextSwitchTo(oldcxt);
 	}
 
+	/* close parent relation, releasing lock on it */
+	table_close(rel, AccessExclusiveLock);
+
 	return rtcs;
 }
 
-- 
2.47.3


--f4uihmgjmvhgvze3--





^ permalink  raw  reply  [nested|flat] 50+ messages in thread

* [PATCH] change get_tables_to_repack_partitioned
@ 2026-07-09 14:55  Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 50+ messages in thread

From: Álvaro Herrera @ 2026-07-09 14:55 UTC (permalink / raw)

---
 src/backend/commands/repack.c | 127 +++++++++++++++++-----------------
 1 file changed, 65 insertions(+), 62 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index 02883fe34a4..b3589ceff51 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -169,8 +169,8 @@ static void copy_table_data(Relation NewHeap, Relation OldHeap, Relation OldInde
 							MultiXactId *pCutoffMulti);
 static List *get_tables_to_repack(RepackCommand cmd, bool usingindex,
 								  MemoryContext permcxt);
-static List *get_tables_to_repack_partitioned(RepackCommand cmd,
-											  Oid relid, bool rel_is_index,
+static List *get_tables_to_repack_partitioned(RepackStmt *stmt,
+											  Relation rel,
 											  MemoryContext permcxt);
 static bool repack_is_permitted_for_relation(RepackCommand cmd,
 											 Oid relid, Oid userid);
@@ -387,58 +387,8 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	}
 	else
 	{
-		Oid			relid;
-		bool		rel_is_index;
-
-		Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
-
-		/*
-		 * If USING INDEX was specified, resolve the index name now and pass
-		 * it down.
-		 */
-		if (stmt->usingindex)
-		{
-			/*
-			 * If no index name was specified when repacking a partitioned
-			 * table, punt for now.  Maybe we can improve this later.
-			 */
-			if (!stmt->indexname)
-			{
-				if (stmt->command == REPACK_COMMAND_CLUSTER)
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-							errmsg("there is no previously clustered index for table \"%s\"",
-								   RelationGetRelationName(rel)));
-				else
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-					/*- translator: first %s is name of a SQL command, eg. REPACK */
-							errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
-								   RepackCommandAsString(stmt->command),
-								   RelationGetRelationName(rel)));
-			}
-
-			relid = determine_clustered_index(rel, stmt->usingindex,
-											  stmt->indexname);
-			if (!OidIsValid(relid))
-				elog(ERROR, "unable to determine index to cluster on");
-			check_index_is_clusterable(rel, relid, AccessExclusiveLock);
-
-			rel_is_index = true;
-		}
-		else
-		{
-			relid = RelationGetRelid(rel);
-			rel_is_index = false;
-		}
-
-		rtcs = get_tables_to_repack_partitioned(stmt->command,
-												relid, rel_is_index,
-												repack_context);
-
-		/* close parent relation, releasing lock on it */
-		table_close(rel, AccessExclusiveLock);
-		rel = NULL;
+		rtcs = get_tables_to_repack_partitioned(stmt, rel, repack_context);
+		rel = NULL;			/* clobber no longer valid pointer */
 	}
 
 	/* Commit to get out of starting transaction */
@@ -2255,19 +2205,66 @@ get_tables_to_repack(RepackCommand cmd, bool usingindex, MemoryContext permcxt)
 }
 
 /*
- * Given a partitioned table or its index, return a list of RelToCluster for
- * all the leaf child tables/indexes.
+ * Resolve a partitioned table named as target of REPACK to the list of
+ * its partitions, and return it as a list of RelToCluster.
  *
- * 'rel_is_index' tells whether 'relid' is that of an index (true) or of the
- * owning relation.
+ * The partitioned table in question was already opened and locked by caller
+ * and is given as argument; it is closed and unlocked here before return.
  */
 static List *
-get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
-								 bool rel_is_index, MemoryContext permcxt)
+get_tables_to_repack_partitioned(RepackStmt *stmt, Relation rel,
+								 MemoryContext permcxt)
 {
+	Oid			relid;
+	bool		rel_is_index;
 	List	   *inhoids;
 	List	   *rtcs = NIL;
 
+	Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
+	Assert(CheckRelationLockedByMe(rel, AccessExclusiveLock, false));
+
+	/*
+	 * We find the list of tables by looking for inheritors.  If USING INDEX
+	 * was given, look for inheritors of that index, whose name we resolve now.
+	 *
+	 * Otherwise we look for inheritors of the table itself.
+	 */
+	if (stmt->usingindex)
+	{
+		/*
+		 * If no index name was specified when repacking a partitioned
+		 * table, punt for now.  Maybe we can improve this later.
+		 */
+		if (!stmt->indexname)
+		{
+			if (stmt->command == REPACK_COMMAND_CLUSTER)
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						errmsg("there is no previously clustered index for table \"%s\"",
+							   RelationGetRelationName(rel)));
+			else
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						/*- translator: first %s is name of a SQL command, eg. REPACK */
+						errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
+							   RepackCommandAsString(stmt->command),
+							   RelationGetRelationName(rel)));
+		}
+
+		relid = determine_clustered_index(rel, stmt->usingindex,
+										  stmt->indexname);
+		if (!OidIsValid(relid))
+			elog(ERROR, "unable to determine index to cluster on");
+		check_index_is_clusterable(rel, relid, AccessExclusiveLock);
+
+		rel_is_index = true;
+	}
+	else
+	{
+		relid = RelationGetRelid(rel);
+		rel_is_index = false;
+	}
+
 	/*
 	 * Do not lock the children until they're processed.  Note that we do hold
 	 * a lock on the parent partitioned table.
@@ -2286,7 +2283,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 			if (get_rel_relkind(child_oid) != RELKIND_INDEX)
 				continue;
 
-			table_oid = IndexGetRelation(child_oid, false);
+			table_oid = IndexGetRelation(child_oid, true);
+			if (!OidIsValid(table_oid))
+				continue;
 			index_oid = child_oid;
 		}
 		else
@@ -2304,7 +2303,8 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		 * leaf partition despite having them on the partitioned table.  Skip
 		 * if so.
 		 */
-		if (!repack_is_permitted_for_relation(cmd, table_oid, GetUserId()))
+		if (!repack_is_permitted_for_relation(stmt->command, table_oid,
+											  GetUserId()))
 			continue;
 
 		/* Use a permanent memory context for the result list */
@@ -2316,6 +2316,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		MemoryContextSwitchTo(oldcxt);
 	}
 
+	/* close parent relation, releasing lock on it */
+	table_close(rel, AccessExclusiveLock);
+
 	return rtcs;
 }
 
-- 
2.47.3


--f4uihmgjmvhgvze3--





^ permalink  raw  reply  [nested|flat] 50+ messages in thread

* [PATCH] change get_tables_to_repack_partitioned
@ 2026-07-09 14:55  Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 50+ messages in thread

From: Álvaro Herrera @ 2026-07-09 14:55 UTC (permalink / raw)

---
 src/backend/commands/repack.c | 127 +++++++++++++++++-----------------
 1 file changed, 65 insertions(+), 62 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index 02883fe34a4..b3589ceff51 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -169,8 +169,8 @@ static void copy_table_data(Relation NewHeap, Relation OldHeap, Relation OldInde
 							MultiXactId *pCutoffMulti);
 static List *get_tables_to_repack(RepackCommand cmd, bool usingindex,
 								  MemoryContext permcxt);
-static List *get_tables_to_repack_partitioned(RepackCommand cmd,
-											  Oid relid, bool rel_is_index,
+static List *get_tables_to_repack_partitioned(RepackStmt *stmt,
+											  Relation rel,
 											  MemoryContext permcxt);
 static bool repack_is_permitted_for_relation(RepackCommand cmd,
 											 Oid relid, Oid userid);
@@ -387,58 +387,8 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	}
 	else
 	{
-		Oid			relid;
-		bool		rel_is_index;
-
-		Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
-
-		/*
-		 * If USING INDEX was specified, resolve the index name now and pass
-		 * it down.
-		 */
-		if (stmt->usingindex)
-		{
-			/*
-			 * If no index name was specified when repacking a partitioned
-			 * table, punt for now.  Maybe we can improve this later.
-			 */
-			if (!stmt->indexname)
-			{
-				if (stmt->command == REPACK_COMMAND_CLUSTER)
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-							errmsg("there is no previously clustered index for table \"%s\"",
-								   RelationGetRelationName(rel)));
-				else
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-					/*- translator: first %s is name of a SQL command, eg. REPACK */
-							errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
-								   RepackCommandAsString(stmt->command),
-								   RelationGetRelationName(rel)));
-			}
-
-			relid = determine_clustered_index(rel, stmt->usingindex,
-											  stmt->indexname);
-			if (!OidIsValid(relid))
-				elog(ERROR, "unable to determine index to cluster on");
-			check_index_is_clusterable(rel, relid, AccessExclusiveLock);
-
-			rel_is_index = true;
-		}
-		else
-		{
-			relid = RelationGetRelid(rel);
-			rel_is_index = false;
-		}
-
-		rtcs = get_tables_to_repack_partitioned(stmt->command,
-												relid, rel_is_index,
-												repack_context);
-
-		/* close parent relation, releasing lock on it */
-		table_close(rel, AccessExclusiveLock);
-		rel = NULL;
+		rtcs = get_tables_to_repack_partitioned(stmt, rel, repack_context);
+		rel = NULL;			/* clobber no longer valid pointer */
 	}
 
 	/* Commit to get out of starting transaction */
@@ -2255,19 +2205,66 @@ get_tables_to_repack(RepackCommand cmd, bool usingindex, MemoryContext permcxt)
 }
 
 /*
- * Given a partitioned table or its index, return a list of RelToCluster for
- * all the leaf child tables/indexes.
+ * Resolve a partitioned table named as target of REPACK to the list of
+ * its partitions, and return it as a list of RelToCluster.
  *
- * 'rel_is_index' tells whether 'relid' is that of an index (true) or of the
- * owning relation.
+ * The partitioned table in question was already opened and locked by caller
+ * and is given as argument; it is closed and unlocked here before return.
  */
 static List *
-get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
-								 bool rel_is_index, MemoryContext permcxt)
+get_tables_to_repack_partitioned(RepackStmt *stmt, Relation rel,
+								 MemoryContext permcxt)
 {
+	Oid			relid;
+	bool		rel_is_index;
 	List	   *inhoids;
 	List	   *rtcs = NIL;
 
+	Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
+	Assert(CheckRelationLockedByMe(rel, AccessExclusiveLock, false));
+
+	/*
+	 * We find the list of tables by looking for inheritors.  If USING INDEX
+	 * was given, look for inheritors of that index, whose name we resolve now.
+	 *
+	 * Otherwise we look for inheritors of the table itself.
+	 */
+	if (stmt->usingindex)
+	{
+		/*
+		 * If no index name was specified when repacking a partitioned
+		 * table, punt for now.  Maybe we can improve this later.
+		 */
+		if (!stmt->indexname)
+		{
+			if (stmt->command == REPACK_COMMAND_CLUSTER)
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						errmsg("there is no previously clustered index for table \"%s\"",
+							   RelationGetRelationName(rel)));
+			else
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						/*- translator: first %s is name of a SQL command, eg. REPACK */
+						errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
+							   RepackCommandAsString(stmt->command),
+							   RelationGetRelationName(rel)));
+		}
+
+		relid = determine_clustered_index(rel, stmt->usingindex,
+										  stmt->indexname);
+		if (!OidIsValid(relid))
+			elog(ERROR, "unable to determine index to cluster on");
+		check_index_is_clusterable(rel, relid, AccessExclusiveLock);
+
+		rel_is_index = true;
+	}
+	else
+	{
+		relid = RelationGetRelid(rel);
+		rel_is_index = false;
+	}
+
 	/*
 	 * Do not lock the children until they're processed.  Note that we do hold
 	 * a lock on the parent partitioned table.
@@ -2286,7 +2283,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 			if (get_rel_relkind(child_oid) != RELKIND_INDEX)
 				continue;
 
-			table_oid = IndexGetRelation(child_oid, false);
+			table_oid = IndexGetRelation(child_oid, true);
+			if (!OidIsValid(table_oid))
+				continue;
 			index_oid = child_oid;
 		}
 		else
@@ -2304,7 +2303,8 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		 * leaf partition despite having them on the partitioned table.  Skip
 		 * if so.
 		 */
-		if (!repack_is_permitted_for_relation(cmd, table_oid, GetUserId()))
+		if (!repack_is_permitted_for_relation(stmt->command, table_oid,
+											  GetUserId()))
 			continue;
 
 		/* Use a permanent memory context for the result list */
@@ -2316,6 +2316,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		MemoryContextSwitchTo(oldcxt);
 	}
 
+	/* close parent relation, releasing lock on it */
+	table_close(rel, AccessExclusiveLock);
+
 	return rtcs;
 }
 
-- 
2.47.3


--f4uihmgjmvhgvze3--





^ permalink  raw  reply  [nested|flat] 50+ messages in thread

* [PATCH] change get_tables_to_repack_partitioned
@ 2026-07-09 14:55  Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 50+ messages in thread

From: Álvaro Herrera @ 2026-07-09 14:55 UTC (permalink / raw)

---
 src/backend/commands/repack.c | 127 +++++++++++++++++-----------------
 1 file changed, 65 insertions(+), 62 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index 02883fe34a4..b3589ceff51 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -169,8 +169,8 @@ static void copy_table_data(Relation NewHeap, Relation OldHeap, Relation OldInde
 							MultiXactId *pCutoffMulti);
 static List *get_tables_to_repack(RepackCommand cmd, bool usingindex,
 								  MemoryContext permcxt);
-static List *get_tables_to_repack_partitioned(RepackCommand cmd,
-											  Oid relid, bool rel_is_index,
+static List *get_tables_to_repack_partitioned(RepackStmt *stmt,
+											  Relation rel,
 											  MemoryContext permcxt);
 static bool repack_is_permitted_for_relation(RepackCommand cmd,
 											 Oid relid, Oid userid);
@@ -387,58 +387,8 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	}
 	else
 	{
-		Oid			relid;
-		bool		rel_is_index;
-
-		Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
-
-		/*
-		 * If USING INDEX was specified, resolve the index name now and pass
-		 * it down.
-		 */
-		if (stmt->usingindex)
-		{
-			/*
-			 * If no index name was specified when repacking a partitioned
-			 * table, punt for now.  Maybe we can improve this later.
-			 */
-			if (!stmt->indexname)
-			{
-				if (stmt->command == REPACK_COMMAND_CLUSTER)
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-							errmsg("there is no previously clustered index for table \"%s\"",
-								   RelationGetRelationName(rel)));
-				else
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-					/*- translator: first %s is name of a SQL command, eg. REPACK */
-							errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
-								   RepackCommandAsString(stmt->command),
-								   RelationGetRelationName(rel)));
-			}
-
-			relid = determine_clustered_index(rel, stmt->usingindex,
-											  stmt->indexname);
-			if (!OidIsValid(relid))
-				elog(ERROR, "unable to determine index to cluster on");
-			check_index_is_clusterable(rel, relid, AccessExclusiveLock);
-
-			rel_is_index = true;
-		}
-		else
-		{
-			relid = RelationGetRelid(rel);
-			rel_is_index = false;
-		}
-
-		rtcs = get_tables_to_repack_partitioned(stmt->command,
-												relid, rel_is_index,
-												repack_context);
-
-		/* close parent relation, releasing lock on it */
-		table_close(rel, AccessExclusiveLock);
-		rel = NULL;
+		rtcs = get_tables_to_repack_partitioned(stmt, rel, repack_context);
+		rel = NULL;			/* clobber no longer valid pointer */
 	}
 
 	/* Commit to get out of starting transaction */
@@ -2255,19 +2205,66 @@ get_tables_to_repack(RepackCommand cmd, bool usingindex, MemoryContext permcxt)
 }
 
 /*
- * Given a partitioned table or its index, return a list of RelToCluster for
- * all the leaf child tables/indexes.
+ * Resolve a partitioned table named as target of REPACK to the list of
+ * its partitions, and return it as a list of RelToCluster.
  *
- * 'rel_is_index' tells whether 'relid' is that of an index (true) or of the
- * owning relation.
+ * The partitioned table in question was already opened and locked by caller
+ * and is given as argument; it is closed and unlocked here before return.
  */
 static List *
-get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
-								 bool rel_is_index, MemoryContext permcxt)
+get_tables_to_repack_partitioned(RepackStmt *stmt, Relation rel,
+								 MemoryContext permcxt)
 {
+	Oid			relid;
+	bool		rel_is_index;
 	List	   *inhoids;
 	List	   *rtcs = NIL;
 
+	Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
+	Assert(CheckRelationLockedByMe(rel, AccessExclusiveLock, false));
+
+	/*
+	 * We find the list of tables by looking for inheritors.  If USING INDEX
+	 * was given, look for inheritors of that index, whose name we resolve now.
+	 *
+	 * Otherwise we look for inheritors of the table itself.
+	 */
+	if (stmt->usingindex)
+	{
+		/*
+		 * If no index name was specified when repacking a partitioned
+		 * table, punt for now.  Maybe we can improve this later.
+		 */
+		if (!stmt->indexname)
+		{
+			if (stmt->command == REPACK_COMMAND_CLUSTER)
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						errmsg("there is no previously clustered index for table \"%s\"",
+							   RelationGetRelationName(rel)));
+			else
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						/*- translator: first %s is name of a SQL command, eg. REPACK */
+						errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
+							   RepackCommandAsString(stmt->command),
+							   RelationGetRelationName(rel)));
+		}
+
+		relid = determine_clustered_index(rel, stmt->usingindex,
+										  stmt->indexname);
+		if (!OidIsValid(relid))
+			elog(ERROR, "unable to determine index to cluster on");
+		check_index_is_clusterable(rel, relid, AccessExclusiveLock);
+
+		rel_is_index = true;
+	}
+	else
+	{
+		relid = RelationGetRelid(rel);
+		rel_is_index = false;
+	}
+
 	/*
 	 * Do not lock the children until they're processed.  Note that we do hold
 	 * a lock on the parent partitioned table.
@@ -2286,7 +2283,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 			if (get_rel_relkind(child_oid) != RELKIND_INDEX)
 				continue;
 
-			table_oid = IndexGetRelation(child_oid, false);
+			table_oid = IndexGetRelation(child_oid, true);
+			if (!OidIsValid(table_oid))
+				continue;
 			index_oid = child_oid;
 		}
 		else
@@ -2304,7 +2303,8 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		 * leaf partition despite having them on the partitioned table.  Skip
 		 * if so.
 		 */
-		if (!repack_is_permitted_for_relation(cmd, table_oid, GetUserId()))
+		if (!repack_is_permitted_for_relation(stmt->command, table_oid,
+											  GetUserId()))
 			continue;
 
 		/* Use a permanent memory context for the result list */
@@ -2316,6 +2316,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		MemoryContextSwitchTo(oldcxt);
 	}
 
+	/* close parent relation, releasing lock on it */
+	table_close(rel, AccessExclusiveLock);
+
 	return rtcs;
 }
 
-- 
2.47.3


--f4uihmgjmvhgvze3--





^ permalink  raw  reply  [nested|flat] 50+ messages in thread

* [PATCH] change get_tables_to_repack_partitioned
@ 2026-07-09 14:55  Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 50+ messages in thread

From: Álvaro Herrera @ 2026-07-09 14:55 UTC (permalink / raw)

---
 src/backend/commands/repack.c | 127 +++++++++++++++++-----------------
 1 file changed, 65 insertions(+), 62 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index 02883fe34a4..b3589ceff51 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -169,8 +169,8 @@ static void copy_table_data(Relation NewHeap, Relation OldHeap, Relation OldInde
 							MultiXactId *pCutoffMulti);
 static List *get_tables_to_repack(RepackCommand cmd, bool usingindex,
 								  MemoryContext permcxt);
-static List *get_tables_to_repack_partitioned(RepackCommand cmd,
-											  Oid relid, bool rel_is_index,
+static List *get_tables_to_repack_partitioned(RepackStmt *stmt,
+											  Relation rel,
 											  MemoryContext permcxt);
 static bool repack_is_permitted_for_relation(RepackCommand cmd,
 											 Oid relid, Oid userid);
@@ -387,58 +387,8 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	}
 	else
 	{
-		Oid			relid;
-		bool		rel_is_index;
-
-		Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
-
-		/*
-		 * If USING INDEX was specified, resolve the index name now and pass
-		 * it down.
-		 */
-		if (stmt->usingindex)
-		{
-			/*
-			 * If no index name was specified when repacking a partitioned
-			 * table, punt for now.  Maybe we can improve this later.
-			 */
-			if (!stmt->indexname)
-			{
-				if (stmt->command == REPACK_COMMAND_CLUSTER)
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-							errmsg("there is no previously clustered index for table \"%s\"",
-								   RelationGetRelationName(rel)));
-				else
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-					/*- translator: first %s is name of a SQL command, eg. REPACK */
-							errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
-								   RepackCommandAsString(stmt->command),
-								   RelationGetRelationName(rel)));
-			}
-
-			relid = determine_clustered_index(rel, stmt->usingindex,
-											  stmt->indexname);
-			if (!OidIsValid(relid))
-				elog(ERROR, "unable to determine index to cluster on");
-			check_index_is_clusterable(rel, relid, AccessExclusiveLock);
-
-			rel_is_index = true;
-		}
-		else
-		{
-			relid = RelationGetRelid(rel);
-			rel_is_index = false;
-		}
-
-		rtcs = get_tables_to_repack_partitioned(stmt->command,
-												relid, rel_is_index,
-												repack_context);
-
-		/* close parent relation, releasing lock on it */
-		table_close(rel, AccessExclusiveLock);
-		rel = NULL;
+		rtcs = get_tables_to_repack_partitioned(stmt, rel, repack_context);
+		rel = NULL;			/* clobber no longer valid pointer */
 	}
 
 	/* Commit to get out of starting transaction */
@@ -2255,19 +2205,66 @@ get_tables_to_repack(RepackCommand cmd, bool usingindex, MemoryContext permcxt)
 }
 
 /*
- * Given a partitioned table or its index, return a list of RelToCluster for
- * all the leaf child tables/indexes.
+ * Resolve a partitioned table named as target of REPACK to the list of
+ * its partitions, and return it as a list of RelToCluster.
  *
- * 'rel_is_index' tells whether 'relid' is that of an index (true) or of the
- * owning relation.
+ * The partitioned table in question was already opened and locked by caller
+ * and is given as argument; it is closed and unlocked here before return.
  */
 static List *
-get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
-								 bool rel_is_index, MemoryContext permcxt)
+get_tables_to_repack_partitioned(RepackStmt *stmt, Relation rel,
+								 MemoryContext permcxt)
 {
+	Oid			relid;
+	bool		rel_is_index;
 	List	   *inhoids;
 	List	   *rtcs = NIL;
 
+	Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
+	Assert(CheckRelationLockedByMe(rel, AccessExclusiveLock, false));
+
+	/*
+	 * We find the list of tables by looking for inheritors.  If USING INDEX
+	 * was given, look for inheritors of that index, whose name we resolve now.
+	 *
+	 * Otherwise we look for inheritors of the table itself.
+	 */
+	if (stmt->usingindex)
+	{
+		/*
+		 * If no index name was specified when repacking a partitioned
+		 * table, punt for now.  Maybe we can improve this later.
+		 */
+		if (!stmt->indexname)
+		{
+			if (stmt->command == REPACK_COMMAND_CLUSTER)
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						errmsg("there is no previously clustered index for table \"%s\"",
+							   RelationGetRelationName(rel)));
+			else
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						/*- translator: first %s is name of a SQL command, eg. REPACK */
+						errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
+							   RepackCommandAsString(stmt->command),
+							   RelationGetRelationName(rel)));
+		}
+
+		relid = determine_clustered_index(rel, stmt->usingindex,
+										  stmt->indexname);
+		if (!OidIsValid(relid))
+			elog(ERROR, "unable to determine index to cluster on");
+		check_index_is_clusterable(rel, relid, AccessExclusiveLock);
+
+		rel_is_index = true;
+	}
+	else
+	{
+		relid = RelationGetRelid(rel);
+		rel_is_index = false;
+	}
+
 	/*
 	 * Do not lock the children until they're processed.  Note that we do hold
 	 * a lock on the parent partitioned table.
@@ -2286,7 +2283,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 			if (get_rel_relkind(child_oid) != RELKIND_INDEX)
 				continue;
 
-			table_oid = IndexGetRelation(child_oid, false);
+			table_oid = IndexGetRelation(child_oid, true);
+			if (!OidIsValid(table_oid))
+				continue;
 			index_oid = child_oid;
 		}
 		else
@@ -2304,7 +2303,8 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		 * leaf partition despite having them on the partitioned table.  Skip
 		 * if so.
 		 */
-		if (!repack_is_permitted_for_relation(cmd, table_oid, GetUserId()))
+		if (!repack_is_permitted_for_relation(stmt->command, table_oid,
+											  GetUserId()))
 			continue;
 
 		/* Use a permanent memory context for the result list */
@@ -2316,6 +2316,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		MemoryContextSwitchTo(oldcxt);
 	}
 
+	/* close parent relation, releasing lock on it */
+	table_close(rel, AccessExclusiveLock);
+
 	return rtcs;
 }
 
-- 
2.47.3


--f4uihmgjmvhgvze3--





^ permalink  raw  reply  [nested|flat] 50+ messages in thread

* [PATCH] change get_tables_to_repack_partitioned
@ 2026-07-09 14:55  Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 50+ messages in thread

From: Álvaro Herrera @ 2026-07-09 14:55 UTC (permalink / raw)

---
 src/backend/commands/repack.c | 127 +++++++++++++++++-----------------
 1 file changed, 65 insertions(+), 62 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index 02883fe34a4..b3589ceff51 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -169,8 +169,8 @@ static void copy_table_data(Relation NewHeap, Relation OldHeap, Relation OldInde
 							MultiXactId *pCutoffMulti);
 static List *get_tables_to_repack(RepackCommand cmd, bool usingindex,
 								  MemoryContext permcxt);
-static List *get_tables_to_repack_partitioned(RepackCommand cmd,
-											  Oid relid, bool rel_is_index,
+static List *get_tables_to_repack_partitioned(RepackStmt *stmt,
+											  Relation rel,
 											  MemoryContext permcxt);
 static bool repack_is_permitted_for_relation(RepackCommand cmd,
 											 Oid relid, Oid userid);
@@ -387,58 +387,8 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	}
 	else
 	{
-		Oid			relid;
-		bool		rel_is_index;
-
-		Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
-
-		/*
-		 * If USING INDEX was specified, resolve the index name now and pass
-		 * it down.
-		 */
-		if (stmt->usingindex)
-		{
-			/*
-			 * If no index name was specified when repacking a partitioned
-			 * table, punt for now.  Maybe we can improve this later.
-			 */
-			if (!stmt->indexname)
-			{
-				if (stmt->command == REPACK_COMMAND_CLUSTER)
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-							errmsg("there is no previously clustered index for table \"%s\"",
-								   RelationGetRelationName(rel)));
-				else
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-					/*- translator: first %s is name of a SQL command, eg. REPACK */
-							errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
-								   RepackCommandAsString(stmt->command),
-								   RelationGetRelationName(rel)));
-			}
-
-			relid = determine_clustered_index(rel, stmt->usingindex,
-											  stmt->indexname);
-			if (!OidIsValid(relid))
-				elog(ERROR, "unable to determine index to cluster on");
-			check_index_is_clusterable(rel, relid, AccessExclusiveLock);
-
-			rel_is_index = true;
-		}
-		else
-		{
-			relid = RelationGetRelid(rel);
-			rel_is_index = false;
-		}
-
-		rtcs = get_tables_to_repack_partitioned(stmt->command,
-												relid, rel_is_index,
-												repack_context);
-
-		/* close parent relation, releasing lock on it */
-		table_close(rel, AccessExclusiveLock);
-		rel = NULL;
+		rtcs = get_tables_to_repack_partitioned(stmt, rel, repack_context);
+		rel = NULL;			/* clobber no longer valid pointer */
 	}
 
 	/* Commit to get out of starting transaction */
@@ -2255,19 +2205,66 @@ get_tables_to_repack(RepackCommand cmd, bool usingindex, MemoryContext permcxt)
 }
 
 /*
- * Given a partitioned table or its index, return a list of RelToCluster for
- * all the leaf child tables/indexes.
+ * Resolve a partitioned table named as target of REPACK to the list of
+ * its partitions, and return it as a list of RelToCluster.
  *
- * 'rel_is_index' tells whether 'relid' is that of an index (true) or of the
- * owning relation.
+ * The partitioned table in question was already opened and locked by caller
+ * and is given as argument; it is closed and unlocked here before return.
  */
 static List *
-get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
-								 bool rel_is_index, MemoryContext permcxt)
+get_tables_to_repack_partitioned(RepackStmt *stmt, Relation rel,
+								 MemoryContext permcxt)
 {
+	Oid			relid;
+	bool		rel_is_index;
 	List	   *inhoids;
 	List	   *rtcs = NIL;
 
+	Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
+	Assert(CheckRelationLockedByMe(rel, AccessExclusiveLock, false));
+
+	/*
+	 * We find the list of tables by looking for inheritors.  If USING INDEX
+	 * was given, look for inheritors of that index, whose name we resolve now.
+	 *
+	 * Otherwise we look for inheritors of the table itself.
+	 */
+	if (stmt->usingindex)
+	{
+		/*
+		 * If no index name was specified when repacking a partitioned
+		 * table, punt for now.  Maybe we can improve this later.
+		 */
+		if (!stmt->indexname)
+		{
+			if (stmt->command == REPACK_COMMAND_CLUSTER)
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						errmsg("there is no previously clustered index for table \"%s\"",
+							   RelationGetRelationName(rel)));
+			else
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						/*- translator: first %s is name of a SQL command, eg. REPACK */
+						errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
+							   RepackCommandAsString(stmt->command),
+							   RelationGetRelationName(rel)));
+		}
+
+		relid = determine_clustered_index(rel, stmt->usingindex,
+										  stmt->indexname);
+		if (!OidIsValid(relid))
+			elog(ERROR, "unable to determine index to cluster on");
+		check_index_is_clusterable(rel, relid, AccessExclusiveLock);
+
+		rel_is_index = true;
+	}
+	else
+	{
+		relid = RelationGetRelid(rel);
+		rel_is_index = false;
+	}
+
 	/*
 	 * Do not lock the children until they're processed.  Note that we do hold
 	 * a lock on the parent partitioned table.
@@ -2286,7 +2283,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 			if (get_rel_relkind(child_oid) != RELKIND_INDEX)
 				continue;
 
-			table_oid = IndexGetRelation(child_oid, false);
+			table_oid = IndexGetRelation(child_oid, true);
+			if (!OidIsValid(table_oid))
+				continue;
 			index_oid = child_oid;
 		}
 		else
@@ -2304,7 +2303,8 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		 * leaf partition despite having them on the partitioned table.  Skip
 		 * if so.
 		 */
-		if (!repack_is_permitted_for_relation(cmd, table_oid, GetUserId()))
+		if (!repack_is_permitted_for_relation(stmt->command, table_oid,
+											  GetUserId()))
 			continue;
 
 		/* Use a permanent memory context for the result list */
@@ -2316,6 +2316,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		MemoryContextSwitchTo(oldcxt);
 	}
 
+	/* close parent relation, releasing lock on it */
+	table_close(rel, AccessExclusiveLock);
+
 	return rtcs;
 }
 
-- 
2.47.3


--f4uihmgjmvhgvze3--





^ permalink  raw  reply  [nested|flat] 50+ messages in thread

* [PATCH] change get_tables_to_repack_partitioned
@ 2026-07-09 14:55  Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 50+ messages in thread

From: Álvaro Herrera @ 2026-07-09 14:55 UTC (permalink / raw)

---
 src/backend/commands/repack.c | 127 +++++++++++++++++-----------------
 1 file changed, 65 insertions(+), 62 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index 02883fe34a4..b3589ceff51 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -169,8 +169,8 @@ static void copy_table_data(Relation NewHeap, Relation OldHeap, Relation OldInde
 							MultiXactId *pCutoffMulti);
 static List *get_tables_to_repack(RepackCommand cmd, bool usingindex,
 								  MemoryContext permcxt);
-static List *get_tables_to_repack_partitioned(RepackCommand cmd,
-											  Oid relid, bool rel_is_index,
+static List *get_tables_to_repack_partitioned(RepackStmt *stmt,
+											  Relation rel,
 											  MemoryContext permcxt);
 static bool repack_is_permitted_for_relation(RepackCommand cmd,
 											 Oid relid, Oid userid);
@@ -387,58 +387,8 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	}
 	else
 	{
-		Oid			relid;
-		bool		rel_is_index;
-
-		Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
-
-		/*
-		 * If USING INDEX was specified, resolve the index name now and pass
-		 * it down.
-		 */
-		if (stmt->usingindex)
-		{
-			/*
-			 * If no index name was specified when repacking a partitioned
-			 * table, punt for now.  Maybe we can improve this later.
-			 */
-			if (!stmt->indexname)
-			{
-				if (stmt->command == REPACK_COMMAND_CLUSTER)
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-							errmsg("there is no previously clustered index for table \"%s\"",
-								   RelationGetRelationName(rel)));
-				else
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-					/*- translator: first %s is name of a SQL command, eg. REPACK */
-							errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
-								   RepackCommandAsString(stmt->command),
-								   RelationGetRelationName(rel)));
-			}
-
-			relid = determine_clustered_index(rel, stmt->usingindex,
-											  stmt->indexname);
-			if (!OidIsValid(relid))
-				elog(ERROR, "unable to determine index to cluster on");
-			check_index_is_clusterable(rel, relid, AccessExclusiveLock);
-
-			rel_is_index = true;
-		}
-		else
-		{
-			relid = RelationGetRelid(rel);
-			rel_is_index = false;
-		}
-
-		rtcs = get_tables_to_repack_partitioned(stmt->command,
-												relid, rel_is_index,
-												repack_context);
-
-		/* close parent relation, releasing lock on it */
-		table_close(rel, AccessExclusiveLock);
-		rel = NULL;
+		rtcs = get_tables_to_repack_partitioned(stmt, rel, repack_context);
+		rel = NULL;			/* clobber no longer valid pointer */
 	}
 
 	/* Commit to get out of starting transaction */
@@ -2255,19 +2205,66 @@ get_tables_to_repack(RepackCommand cmd, bool usingindex, MemoryContext permcxt)
 }
 
 /*
- * Given a partitioned table or its index, return a list of RelToCluster for
- * all the leaf child tables/indexes.
+ * Resolve a partitioned table named as target of REPACK to the list of
+ * its partitions, and return it as a list of RelToCluster.
  *
- * 'rel_is_index' tells whether 'relid' is that of an index (true) or of the
- * owning relation.
+ * The partitioned table in question was already opened and locked by caller
+ * and is given as argument; it is closed and unlocked here before return.
  */
 static List *
-get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
-								 bool rel_is_index, MemoryContext permcxt)
+get_tables_to_repack_partitioned(RepackStmt *stmt, Relation rel,
+								 MemoryContext permcxt)
 {
+	Oid			relid;
+	bool		rel_is_index;
 	List	   *inhoids;
 	List	   *rtcs = NIL;
 
+	Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
+	Assert(CheckRelationLockedByMe(rel, AccessExclusiveLock, false));
+
+	/*
+	 * We find the list of tables by looking for inheritors.  If USING INDEX
+	 * was given, look for inheritors of that index, whose name we resolve now.
+	 *
+	 * Otherwise we look for inheritors of the table itself.
+	 */
+	if (stmt->usingindex)
+	{
+		/*
+		 * If no index name was specified when repacking a partitioned
+		 * table, punt for now.  Maybe we can improve this later.
+		 */
+		if (!stmt->indexname)
+		{
+			if (stmt->command == REPACK_COMMAND_CLUSTER)
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						errmsg("there is no previously clustered index for table \"%s\"",
+							   RelationGetRelationName(rel)));
+			else
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						/*- translator: first %s is name of a SQL command, eg. REPACK */
+						errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
+							   RepackCommandAsString(stmt->command),
+							   RelationGetRelationName(rel)));
+		}
+
+		relid = determine_clustered_index(rel, stmt->usingindex,
+										  stmt->indexname);
+		if (!OidIsValid(relid))
+			elog(ERROR, "unable to determine index to cluster on");
+		check_index_is_clusterable(rel, relid, AccessExclusiveLock);
+
+		rel_is_index = true;
+	}
+	else
+	{
+		relid = RelationGetRelid(rel);
+		rel_is_index = false;
+	}
+
 	/*
 	 * Do not lock the children until they're processed.  Note that we do hold
 	 * a lock on the parent partitioned table.
@@ -2286,7 +2283,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 			if (get_rel_relkind(child_oid) != RELKIND_INDEX)
 				continue;
 
-			table_oid = IndexGetRelation(child_oid, false);
+			table_oid = IndexGetRelation(child_oid, true);
+			if (!OidIsValid(table_oid))
+				continue;
 			index_oid = child_oid;
 		}
 		else
@@ -2304,7 +2303,8 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		 * leaf partition despite having them on the partitioned table.  Skip
 		 * if so.
 		 */
-		if (!repack_is_permitted_for_relation(cmd, table_oid, GetUserId()))
+		if (!repack_is_permitted_for_relation(stmt->command, table_oid,
+											  GetUserId()))
 			continue;
 
 		/* Use a permanent memory context for the result list */
@@ -2316,6 +2316,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		MemoryContextSwitchTo(oldcxt);
 	}
 
+	/* close parent relation, releasing lock on it */
+	table_close(rel, AccessExclusiveLock);
+
 	return rtcs;
 }
 
-- 
2.47.3


--f4uihmgjmvhgvze3--





^ permalink  raw  reply  [nested|flat] 50+ messages in thread

* [PATCH] change get_tables_to_repack_partitioned
@ 2026-07-09 14:55  Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 50+ messages in thread

From: Álvaro Herrera @ 2026-07-09 14:55 UTC (permalink / raw)

---
 src/backend/commands/repack.c | 127 +++++++++++++++++-----------------
 1 file changed, 65 insertions(+), 62 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index 02883fe34a4..b3589ceff51 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -169,8 +169,8 @@ static void copy_table_data(Relation NewHeap, Relation OldHeap, Relation OldInde
 							MultiXactId *pCutoffMulti);
 static List *get_tables_to_repack(RepackCommand cmd, bool usingindex,
 								  MemoryContext permcxt);
-static List *get_tables_to_repack_partitioned(RepackCommand cmd,
-											  Oid relid, bool rel_is_index,
+static List *get_tables_to_repack_partitioned(RepackStmt *stmt,
+											  Relation rel,
 											  MemoryContext permcxt);
 static bool repack_is_permitted_for_relation(RepackCommand cmd,
 											 Oid relid, Oid userid);
@@ -387,58 +387,8 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	}
 	else
 	{
-		Oid			relid;
-		bool		rel_is_index;
-
-		Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
-
-		/*
-		 * If USING INDEX was specified, resolve the index name now and pass
-		 * it down.
-		 */
-		if (stmt->usingindex)
-		{
-			/*
-			 * If no index name was specified when repacking a partitioned
-			 * table, punt for now.  Maybe we can improve this later.
-			 */
-			if (!stmt->indexname)
-			{
-				if (stmt->command == REPACK_COMMAND_CLUSTER)
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-							errmsg("there is no previously clustered index for table \"%s\"",
-								   RelationGetRelationName(rel)));
-				else
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-					/*- translator: first %s is name of a SQL command, eg. REPACK */
-							errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
-								   RepackCommandAsString(stmt->command),
-								   RelationGetRelationName(rel)));
-			}
-
-			relid = determine_clustered_index(rel, stmt->usingindex,
-											  stmt->indexname);
-			if (!OidIsValid(relid))
-				elog(ERROR, "unable to determine index to cluster on");
-			check_index_is_clusterable(rel, relid, AccessExclusiveLock);
-
-			rel_is_index = true;
-		}
-		else
-		{
-			relid = RelationGetRelid(rel);
-			rel_is_index = false;
-		}
-
-		rtcs = get_tables_to_repack_partitioned(stmt->command,
-												relid, rel_is_index,
-												repack_context);
-
-		/* close parent relation, releasing lock on it */
-		table_close(rel, AccessExclusiveLock);
-		rel = NULL;
+		rtcs = get_tables_to_repack_partitioned(stmt, rel, repack_context);
+		rel = NULL;			/* clobber no longer valid pointer */
 	}
 
 	/* Commit to get out of starting transaction */
@@ -2255,19 +2205,66 @@ get_tables_to_repack(RepackCommand cmd, bool usingindex, MemoryContext permcxt)
 }
 
 /*
- * Given a partitioned table or its index, return a list of RelToCluster for
- * all the leaf child tables/indexes.
+ * Resolve a partitioned table named as target of REPACK to the list of
+ * its partitions, and return it as a list of RelToCluster.
  *
- * 'rel_is_index' tells whether 'relid' is that of an index (true) or of the
- * owning relation.
+ * The partitioned table in question was already opened and locked by caller
+ * and is given as argument; it is closed and unlocked here before return.
  */
 static List *
-get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
-								 bool rel_is_index, MemoryContext permcxt)
+get_tables_to_repack_partitioned(RepackStmt *stmt, Relation rel,
+								 MemoryContext permcxt)
 {
+	Oid			relid;
+	bool		rel_is_index;
 	List	   *inhoids;
 	List	   *rtcs = NIL;
 
+	Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
+	Assert(CheckRelationLockedByMe(rel, AccessExclusiveLock, false));
+
+	/*
+	 * We find the list of tables by looking for inheritors.  If USING INDEX
+	 * was given, look for inheritors of that index, whose name we resolve now.
+	 *
+	 * Otherwise we look for inheritors of the table itself.
+	 */
+	if (stmt->usingindex)
+	{
+		/*
+		 * If no index name was specified when repacking a partitioned
+		 * table, punt for now.  Maybe we can improve this later.
+		 */
+		if (!stmt->indexname)
+		{
+			if (stmt->command == REPACK_COMMAND_CLUSTER)
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						errmsg("there is no previously clustered index for table \"%s\"",
+							   RelationGetRelationName(rel)));
+			else
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						/*- translator: first %s is name of a SQL command, eg. REPACK */
+						errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
+							   RepackCommandAsString(stmt->command),
+							   RelationGetRelationName(rel)));
+		}
+
+		relid = determine_clustered_index(rel, stmt->usingindex,
+										  stmt->indexname);
+		if (!OidIsValid(relid))
+			elog(ERROR, "unable to determine index to cluster on");
+		check_index_is_clusterable(rel, relid, AccessExclusiveLock);
+
+		rel_is_index = true;
+	}
+	else
+	{
+		relid = RelationGetRelid(rel);
+		rel_is_index = false;
+	}
+
 	/*
 	 * Do not lock the children until they're processed.  Note that we do hold
 	 * a lock on the parent partitioned table.
@@ -2286,7 +2283,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 			if (get_rel_relkind(child_oid) != RELKIND_INDEX)
 				continue;
 
-			table_oid = IndexGetRelation(child_oid, false);
+			table_oid = IndexGetRelation(child_oid, true);
+			if (!OidIsValid(table_oid))
+				continue;
 			index_oid = child_oid;
 		}
 		else
@@ -2304,7 +2303,8 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		 * leaf partition despite having them on the partitioned table.  Skip
 		 * if so.
 		 */
-		if (!repack_is_permitted_for_relation(cmd, table_oid, GetUserId()))
+		if (!repack_is_permitted_for_relation(stmt->command, table_oid,
+											  GetUserId()))
 			continue;
 
 		/* Use a permanent memory context for the result list */
@@ -2316,6 +2316,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		MemoryContextSwitchTo(oldcxt);
 	}
 
+	/* close parent relation, releasing lock on it */
+	table_close(rel, AccessExclusiveLock);
+
 	return rtcs;
 }
 
-- 
2.47.3


--f4uihmgjmvhgvze3--





^ permalink  raw  reply  [nested|flat] 50+ messages in thread

* [PATCH] change get_tables_to_repack_partitioned
@ 2026-07-09 14:55  Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 50+ messages in thread

From: Álvaro Herrera @ 2026-07-09 14:55 UTC (permalink / raw)

---
 src/backend/commands/repack.c | 127 +++++++++++++++++-----------------
 1 file changed, 65 insertions(+), 62 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index 02883fe34a4..b3589ceff51 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -169,8 +169,8 @@ static void copy_table_data(Relation NewHeap, Relation OldHeap, Relation OldInde
 							MultiXactId *pCutoffMulti);
 static List *get_tables_to_repack(RepackCommand cmd, bool usingindex,
 								  MemoryContext permcxt);
-static List *get_tables_to_repack_partitioned(RepackCommand cmd,
-											  Oid relid, bool rel_is_index,
+static List *get_tables_to_repack_partitioned(RepackStmt *stmt,
+											  Relation rel,
 											  MemoryContext permcxt);
 static bool repack_is_permitted_for_relation(RepackCommand cmd,
 											 Oid relid, Oid userid);
@@ -387,58 +387,8 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	}
 	else
 	{
-		Oid			relid;
-		bool		rel_is_index;
-
-		Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
-
-		/*
-		 * If USING INDEX was specified, resolve the index name now and pass
-		 * it down.
-		 */
-		if (stmt->usingindex)
-		{
-			/*
-			 * If no index name was specified when repacking a partitioned
-			 * table, punt for now.  Maybe we can improve this later.
-			 */
-			if (!stmt->indexname)
-			{
-				if (stmt->command == REPACK_COMMAND_CLUSTER)
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-							errmsg("there is no previously clustered index for table \"%s\"",
-								   RelationGetRelationName(rel)));
-				else
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-					/*- translator: first %s is name of a SQL command, eg. REPACK */
-							errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
-								   RepackCommandAsString(stmt->command),
-								   RelationGetRelationName(rel)));
-			}
-
-			relid = determine_clustered_index(rel, stmt->usingindex,
-											  stmt->indexname);
-			if (!OidIsValid(relid))
-				elog(ERROR, "unable to determine index to cluster on");
-			check_index_is_clusterable(rel, relid, AccessExclusiveLock);
-
-			rel_is_index = true;
-		}
-		else
-		{
-			relid = RelationGetRelid(rel);
-			rel_is_index = false;
-		}
-
-		rtcs = get_tables_to_repack_partitioned(stmt->command,
-												relid, rel_is_index,
-												repack_context);
-
-		/* close parent relation, releasing lock on it */
-		table_close(rel, AccessExclusiveLock);
-		rel = NULL;
+		rtcs = get_tables_to_repack_partitioned(stmt, rel, repack_context);
+		rel = NULL;			/* clobber no longer valid pointer */
 	}
 
 	/* Commit to get out of starting transaction */
@@ -2255,19 +2205,66 @@ get_tables_to_repack(RepackCommand cmd, bool usingindex, MemoryContext permcxt)
 }
 
 /*
- * Given a partitioned table or its index, return a list of RelToCluster for
- * all the leaf child tables/indexes.
+ * Resolve a partitioned table named as target of REPACK to the list of
+ * its partitions, and return it as a list of RelToCluster.
  *
- * 'rel_is_index' tells whether 'relid' is that of an index (true) or of the
- * owning relation.
+ * The partitioned table in question was already opened and locked by caller
+ * and is given as argument; it is closed and unlocked here before return.
  */
 static List *
-get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
-								 bool rel_is_index, MemoryContext permcxt)
+get_tables_to_repack_partitioned(RepackStmt *stmt, Relation rel,
+								 MemoryContext permcxt)
 {
+	Oid			relid;
+	bool		rel_is_index;
 	List	   *inhoids;
 	List	   *rtcs = NIL;
 
+	Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
+	Assert(CheckRelationLockedByMe(rel, AccessExclusiveLock, false));
+
+	/*
+	 * We find the list of tables by looking for inheritors.  If USING INDEX
+	 * was given, look for inheritors of that index, whose name we resolve now.
+	 *
+	 * Otherwise we look for inheritors of the table itself.
+	 */
+	if (stmt->usingindex)
+	{
+		/*
+		 * If no index name was specified when repacking a partitioned
+		 * table, punt for now.  Maybe we can improve this later.
+		 */
+		if (!stmt->indexname)
+		{
+			if (stmt->command == REPACK_COMMAND_CLUSTER)
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						errmsg("there is no previously clustered index for table \"%s\"",
+							   RelationGetRelationName(rel)));
+			else
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						/*- translator: first %s is name of a SQL command, eg. REPACK */
+						errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
+							   RepackCommandAsString(stmt->command),
+							   RelationGetRelationName(rel)));
+		}
+
+		relid = determine_clustered_index(rel, stmt->usingindex,
+										  stmt->indexname);
+		if (!OidIsValid(relid))
+			elog(ERROR, "unable to determine index to cluster on");
+		check_index_is_clusterable(rel, relid, AccessExclusiveLock);
+
+		rel_is_index = true;
+	}
+	else
+	{
+		relid = RelationGetRelid(rel);
+		rel_is_index = false;
+	}
+
 	/*
 	 * Do not lock the children until they're processed.  Note that we do hold
 	 * a lock on the parent partitioned table.
@@ -2286,7 +2283,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 			if (get_rel_relkind(child_oid) != RELKIND_INDEX)
 				continue;
 
-			table_oid = IndexGetRelation(child_oid, false);
+			table_oid = IndexGetRelation(child_oid, true);
+			if (!OidIsValid(table_oid))
+				continue;
 			index_oid = child_oid;
 		}
 		else
@@ -2304,7 +2303,8 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		 * leaf partition despite having them on the partitioned table.  Skip
 		 * if so.
 		 */
-		if (!repack_is_permitted_for_relation(cmd, table_oid, GetUserId()))
+		if (!repack_is_permitted_for_relation(stmt->command, table_oid,
+											  GetUserId()))
 			continue;
 
 		/* Use a permanent memory context for the result list */
@@ -2316,6 +2316,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		MemoryContextSwitchTo(oldcxt);
 	}
 
+	/* close parent relation, releasing lock on it */
+	table_close(rel, AccessExclusiveLock);
+
 	return rtcs;
 }
 
-- 
2.47.3


--f4uihmgjmvhgvze3--





^ permalink  raw  reply  [nested|flat] 50+ messages in thread

* [PATCH] change get_tables_to_repack_partitioned
@ 2026-07-09 14:55  Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 50+ messages in thread

From: Álvaro Herrera @ 2026-07-09 14:55 UTC (permalink / raw)

---
 src/backend/commands/repack.c | 127 +++++++++++++++++-----------------
 1 file changed, 65 insertions(+), 62 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index 02883fe34a4..b3589ceff51 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -169,8 +169,8 @@ static void copy_table_data(Relation NewHeap, Relation OldHeap, Relation OldInde
 							MultiXactId *pCutoffMulti);
 static List *get_tables_to_repack(RepackCommand cmd, bool usingindex,
 								  MemoryContext permcxt);
-static List *get_tables_to_repack_partitioned(RepackCommand cmd,
-											  Oid relid, bool rel_is_index,
+static List *get_tables_to_repack_partitioned(RepackStmt *stmt,
+											  Relation rel,
 											  MemoryContext permcxt);
 static bool repack_is_permitted_for_relation(RepackCommand cmd,
 											 Oid relid, Oid userid);
@@ -387,58 +387,8 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	}
 	else
 	{
-		Oid			relid;
-		bool		rel_is_index;
-
-		Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
-
-		/*
-		 * If USING INDEX was specified, resolve the index name now and pass
-		 * it down.
-		 */
-		if (stmt->usingindex)
-		{
-			/*
-			 * If no index name was specified when repacking a partitioned
-			 * table, punt for now.  Maybe we can improve this later.
-			 */
-			if (!stmt->indexname)
-			{
-				if (stmt->command == REPACK_COMMAND_CLUSTER)
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-							errmsg("there is no previously clustered index for table \"%s\"",
-								   RelationGetRelationName(rel)));
-				else
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-					/*- translator: first %s is name of a SQL command, eg. REPACK */
-							errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
-								   RepackCommandAsString(stmt->command),
-								   RelationGetRelationName(rel)));
-			}
-
-			relid = determine_clustered_index(rel, stmt->usingindex,
-											  stmt->indexname);
-			if (!OidIsValid(relid))
-				elog(ERROR, "unable to determine index to cluster on");
-			check_index_is_clusterable(rel, relid, AccessExclusiveLock);
-
-			rel_is_index = true;
-		}
-		else
-		{
-			relid = RelationGetRelid(rel);
-			rel_is_index = false;
-		}
-
-		rtcs = get_tables_to_repack_partitioned(stmt->command,
-												relid, rel_is_index,
-												repack_context);
-
-		/* close parent relation, releasing lock on it */
-		table_close(rel, AccessExclusiveLock);
-		rel = NULL;
+		rtcs = get_tables_to_repack_partitioned(stmt, rel, repack_context);
+		rel = NULL;			/* clobber no longer valid pointer */
 	}
 
 	/* Commit to get out of starting transaction */
@@ -2255,19 +2205,66 @@ get_tables_to_repack(RepackCommand cmd, bool usingindex, MemoryContext permcxt)
 }
 
 /*
- * Given a partitioned table or its index, return a list of RelToCluster for
- * all the leaf child tables/indexes.
+ * Resolve a partitioned table named as target of REPACK to the list of
+ * its partitions, and return it as a list of RelToCluster.
  *
- * 'rel_is_index' tells whether 'relid' is that of an index (true) or of the
- * owning relation.
+ * The partitioned table in question was already opened and locked by caller
+ * and is given as argument; it is closed and unlocked here before return.
  */
 static List *
-get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
-								 bool rel_is_index, MemoryContext permcxt)
+get_tables_to_repack_partitioned(RepackStmt *stmt, Relation rel,
+								 MemoryContext permcxt)
 {
+	Oid			relid;
+	bool		rel_is_index;
 	List	   *inhoids;
 	List	   *rtcs = NIL;
 
+	Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
+	Assert(CheckRelationLockedByMe(rel, AccessExclusiveLock, false));
+
+	/*
+	 * We find the list of tables by looking for inheritors.  If USING INDEX
+	 * was given, look for inheritors of that index, whose name we resolve now.
+	 *
+	 * Otherwise we look for inheritors of the table itself.
+	 */
+	if (stmt->usingindex)
+	{
+		/*
+		 * If no index name was specified when repacking a partitioned
+		 * table, punt for now.  Maybe we can improve this later.
+		 */
+		if (!stmt->indexname)
+		{
+			if (stmt->command == REPACK_COMMAND_CLUSTER)
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						errmsg("there is no previously clustered index for table \"%s\"",
+							   RelationGetRelationName(rel)));
+			else
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						/*- translator: first %s is name of a SQL command, eg. REPACK */
+						errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
+							   RepackCommandAsString(stmt->command),
+							   RelationGetRelationName(rel)));
+		}
+
+		relid = determine_clustered_index(rel, stmt->usingindex,
+										  stmt->indexname);
+		if (!OidIsValid(relid))
+			elog(ERROR, "unable to determine index to cluster on");
+		check_index_is_clusterable(rel, relid, AccessExclusiveLock);
+
+		rel_is_index = true;
+	}
+	else
+	{
+		relid = RelationGetRelid(rel);
+		rel_is_index = false;
+	}
+
 	/*
 	 * Do not lock the children until they're processed.  Note that we do hold
 	 * a lock on the parent partitioned table.
@@ -2286,7 +2283,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 			if (get_rel_relkind(child_oid) != RELKIND_INDEX)
 				continue;
 
-			table_oid = IndexGetRelation(child_oid, false);
+			table_oid = IndexGetRelation(child_oid, true);
+			if (!OidIsValid(table_oid))
+				continue;
 			index_oid = child_oid;
 		}
 		else
@@ -2304,7 +2303,8 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		 * leaf partition despite having them on the partitioned table.  Skip
 		 * if so.
 		 */
-		if (!repack_is_permitted_for_relation(cmd, table_oid, GetUserId()))
+		if (!repack_is_permitted_for_relation(stmt->command, table_oid,
+											  GetUserId()))
 			continue;
 
 		/* Use a permanent memory context for the result list */
@@ -2316,6 +2316,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		MemoryContextSwitchTo(oldcxt);
 	}
 
+	/* close parent relation, releasing lock on it */
+	table_close(rel, AccessExclusiveLock);
+
 	return rtcs;
 }
 
-- 
2.47.3


--f4uihmgjmvhgvze3--





^ permalink  raw  reply  [nested|flat] 50+ messages in thread

* [PATCH] change get_tables_to_repack_partitioned
@ 2026-07-09 14:55  Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 50+ messages in thread

From: Álvaro Herrera @ 2026-07-09 14:55 UTC (permalink / raw)

---
 src/backend/commands/repack.c | 127 +++++++++++++++++-----------------
 1 file changed, 65 insertions(+), 62 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index 02883fe34a4..b3589ceff51 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -169,8 +169,8 @@ static void copy_table_data(Relation NewHeap, Relation OldHeap, Relation OldInde
 							MultiXactId *pCutoffMulti);
 static List *get_tables_to_repack(RepackCommand cmd, bool usingindex,
 								  MemoryContext permcxt);
-static List *get_tables_to_repack_partitioned(RepackCommand cmd,
-											  Oid relid, bool rel_is_index,
+static List *get_tables_to_repack_partitioned(RepackStmt *stmt,
+											  Relation rel,
 											  MemoryContext permcxt);
 static bool repack_is_permitted_for_relation(RepackCommand cmd,
 											 Oid relid, Oid userid);
@@ -387,58 +387,8 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	}
 	else
 	{
-		Oid			relid;
-		bool		rel_is_index;
-
-		Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
-
-		/*
-		 * If USING INDEX was specified, resolve the index name now and pass
-		 * it down.
-		 */
-		if (stmt->usingindex)
-		{
-			/*
-			 * If no index name was specified when repacking a partitioned
-			 * table, punt for now.  Maybe we can improve this later.
-			 */
-			if (!stmt->indexname)
-			{
-				if (stmt->command == REPACK_COMMAND_CLUSTER)
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-							errmsg("there is no previously clustered index for table \"%s\"",
-								   RelationGetRelationName(rel)));
-				else
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-					/*- translator: first %s is name of a SQL command, eg. REPACK */
-							errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
-								   RepackCommandAsString(stmt->command),
-								   RelationGetRelationName(rel)));
-			}
-
-			relid = determine_clustered_index(rel, stmt->usingindex,
-											  stmt->indexname);
-			if (!OidIsValid(relid))
-				elog(ERROR, "unable to determine index to cluster on");
-			check_index_is_clusterable(rel, relid, AccessExclusiveLock);
-
-			rel_is_index = true;
-		}
-		else
-		{
-			relid = RelationGetRelid(rel);
-			rel_is_index = false;
-		}
-
-		rtcs = get_tables_to_repack_partitioned(stmt->command,
-												relid, rel_is_index,
-												repack_context);
-
-		/* close parent relation, releasing lock on it */
-		table_close(rel, AccessExclusiveLock);
-		rel = NULL;
+		rtcs = get_tables_to_repack_partitioned(stmt, rel, repack_context);
+		rel = NULL;			/* clobber no longer valid pointer */
 	}
 
 	/* Commit to get out of starting transaction */
@@ -2255,19 +2205,66 @@ get_tables_to_repack(RepackCommand cmd, bool usingindex, MemoryContext permcxt)
 }
 
 /*
- * Given a partitioned table or its index, return a list of RelToCluster for
- * all the leaf child tables/indexes.
+ * Resolve a partitioned table named as target of REPACK to the list of
+ * its partitions, and return it as a list of RelToCluster.
  *
- * 'rel_is_index' tells whether 'relid' is that of an index (true) or of the
- * owning relation.
+ * The partitioned table in question was already opened and locked by caller
+ * and is given as argument; it is closed and unlocked here before return.
  */
 static List *
-get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
-								 bool rel_is_index, MemoryContext permcxt)
+get_tables_to_repack_partitioned(RepackStmt *stmt, Relation rel,
+								 MemoryContext permcxt)
 {
+	Oid			relid;
+	bool		rel_is_index;
 	List	   *inhoids;
 	List	   *rtcs = NIL;
 
+	Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
+	Assert(CheckRelationLockedByMe(rel, AccessExclusiveLock, false));
+
+	/*
+	 * We find the list of tables by looking for inheritors.  If USING INDEX
+	 * was given, look for inheritors of that index, whose name we resolve now.
+	 *
+	 * Otherwise we look for inheritors of the table itself.
+	 */
+	if (stmt->usingindex)
+	{
+		/*
+		 * If no index name was specified when repacking a partitioned
+		 * table, punt for now.  Maybe we can improve this later.
+		 */
+		if (!stmt->indexname)
+		{
+			if (stmt->command == REPACK_COMMAND_CLUSTER)
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						errmsg("there is no previously clustered index for table \"%s\"",
+							   RelationGetRelationName(rel)));
+			else
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						/*- translator: first %s is name of a SQL command, eg. REPACK */
+						errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
+							   RepackCommandAsString(stmt->command),
+							   RelationGetRelationName(rel)));
+		}
+
+		relid = determine_clustered_index(rel, stmt->usingindex,
+										  stmt->indexname);
+		if (!OidIsValid(relid))
+			elog(ERROR, "unable to determine index to cluster on");
+		check_index_is_clusterable(rel, relid, AccessExclusiveLock);
+
+		rel_is_index = true;
+	}
+	else
+	{
+		relid = RelationGetRelid(rel);
+		rel_is_index = false;
+	}
+
 	/*
 	 * Do not lock the children until they're processed.  Note that we do hold
 	 * a lock on the parent partitioned table.
@@ -2286,7 +2283,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 			if (get_rel_relkind(child_oid) != RELKIND_INDEX)
 				continue;
 
-			table_oid = IndexGetRelation(child_oid, false);
+			table_oid = IndexGetRelation(child_oid, true);
+			if (!OidIsValid(table_oid))
+				continue;
 			index_oid = child_oid;
 		}
 		else
@@ -2304,7 +2303,8 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		 * leaf partition despite having them on the partitioned table.  Skip
 		 * if so.
 		 */
-		if (!repack_is_permitted_for_relation(cmd, table_oid, GetUserId()))
+		if (!repack_is_permitted_for_relation(stmt->command, table_oid,
+											  GetUserId()))
 			continue;
 
 		/* Use a permanent memory context for the result list */
@@ -2316,6 +2316,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		MemoryContextSwitchTo(oldcxt);
 	}
 
+	/* close parent relation, releasing lock on it */
+	table_close(rel, AccessExclusiveLock);
+
 	return rtcs;
 }
 
-- 
2.47.3


--f4uihmgjmvhgvze3--





^ permalink  raw  reply  [nested|flat] 50+ messages in thread

* [PATCH] change get_tables_to_repack_partitioned
@ 2026-07-09 14:55  Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 50+ messages in thread

From: Álvaro Herrera @ 2026-07-09 14:55 UTC (permalink / raw)

---
 src/backend/commands/repack.c | 127 +++++++++++++++++-----------------
 1 file changed, 65 insertions(+), 62 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index 02883fe34a4..b3589ceff51 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -169,8 +169,8 @@ static void copy_table_data(Relation NewHeap, Relation OldHeap, Relation OldInde
 							MultiXactId *pCutoffMulti);
 static List *get_tables_to_repack(RepackCommand cmd, bool usingindex,
 								  MemoryContext permcxt);
-static List *get_tables_to_repack_partitioned(RepackCommand cmd,
-											  Oid relid, bool rel_is_index,
+static List *get_tables_to_repack_partitioned(RepackStmt *stmt,
+											  Relation rel,
 											  MemoryContext permcxt);
 static bool repack_is_permitted_for_relation(RepackCommand cmd,
 											 Oid relid, Oid userid);
@@ -387,58 +387,8 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	}
 	else
 	{
-		Oid			relid;
-		bool		rel_is_index;
-
-		Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
-
-		/*
-		 * If USING INDEX was specified, resolve the index name now and pass
-		 * it down.
-		 */
-		if (stmt->usingindex)
-		{
-			/*
-			 * If no index name was specified when repacking a partitioned
-			 * table, punt for now.  Maybe we can improve this later.
-			 */
-			if (!stmt->indexname)
-			{
-				if (stmt->command == REPACK_COMMAND_CLUSTER)
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-							errmsg("there is no previously clustered index for table \"%s\"",
-								   RelationGetRelationName(rel)));
-				else
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-					/*- translator: first %s is name of a SQL command, eg. REPACK */
-							errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
-								   RepackCommandAsString(stmt->command),
-								   RelationGetRelationName(rel)));
-			}
-
-			relid = determine_clustered_index(rel, stmt->usingindex,
-											  stmt->indexname);
-			if (!OidIsValid(relid))
-				elog(ERROR, "unable to determine index to cluster on");
-			check_index_is_clusterable(rel, relid, AccessExclusiveLock);
-
-			rel_is_index = true;
-		}
-		else
-		{
-			relid = RelationGetRelid(rel);
-			rel_is_index = false;
-		}
-
-		rtcs = get_tables_to_repack_partitioned(stmt->command,
-												relid, rel_is_index,
-												repack_context);
-
-		/* close parent relation, releasing lock on it */
-		table_close(rel, AccessExclusiveLock);
-		rel = NULL;
+		rtcs = get_tables_to_repack_partitioned(stmt, rel, repack_context);
+		rel = NULL;			/* clobber no longer valid pointer */
 	}
 
 	/* Commit to get out of starting transaction */
@@ -2255,19 +2205,66 @@ get_tables_to_repack(RepackCommand cmd, bool usingindex, MemoryContext permcxt)
 }
 
 /*
- * Given a partitioned table or its index, return a list of RelToCluster for
- * all the leaf child tables/indexes.
+ * Resolve a partitioned table named as target of REPACK to the list of
+ * its partitions, and return it as a list of RelToCluster.
  *
- * 'rel_is_index' tells whether 'relid' is that of an index (true) or of the
- * owning relation.
+ * The partitioned table in question was already opened and locked by caller
+ * and is given as argument; it is closed and unlocked here before return.
  */
 static List *
-get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
-								 bool rel_is_index, MemoryContext permcxt)
+get_tables_to_repack_partitioned(RepackStmt *stmt, Relation rel,
+								 MemoryContext permcxt)
 {
+	Oid			relid;
+	bool		rel_is_index;
 	List	   *inhoids;
 	List	   *rtcs = NIL;
 
+	Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
+	Assert(CheckRelationLockedByMe(rel, AccessExclusiveLock, false));
+
+	/*
+	 * We find the list of tables by looking for inheritors.  If USING INDEX
+	 * was given, look for inheritors of that index, whose name we resolve now.
+	 *
+	 * Otherwise we look for inheritors of the table itself.
+	 */
+	if (stmt->usingindex)
+	{
+		/*
+		 * If no index name was specified when repacking a partitioned
+		 * table, punt for now.  Maybe we can improve this later.
+		 */
+		if (!stmt->indexname)
+		{
+			if (stmt->command == REPACK_COMMAND_CLUSTER)
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						errmsg("there is no previously clustered index for table \"%s\"",
+							   RelationGetRelationName(rel)));
+			else
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						/*- translator: first %s is name of a SQL command, eg. REPACK */
+						errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
+							   RepackCommandAsString(stmt->command),
+							   RelationGetRelationName(rel)));
+		}
+
+		relid = determine_clustered_index(rel, stmt->usingindex,
+										  stmt->indexname);
+		if (!OidIsValid(relid))
+			elog(ERROR, "unable to determine index to cluster on");
+		check_index_is_clusterable(rel, relid, AccessExclusiveLock);
+
+		rel_is_index = true;
+	}
+	else
+	{
+		relid = RelationGetRelid(rel);
+		rel_is_index = false;
+	}
+
 	/*
 	 * Do not lock the children until they're processed.  Note that we do hold
 	 * a lock on the parent partitioned table.
@@ -2286,7 +2283,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 			if (get_rel_relkind(child_oid) != RELKIND_INDEX)
 				continue;
 
-			table_oid = IndexGetRelation(child_oid, false);
+			table_oid = IndexGetRelation(child_oid, true);
+			if (!OidIsValid(table_oid))
+				continue;
 			index_oid = child_oid;
 		}
 		else
@@ -2304,7 +2303,8 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		 * leaf partition despite having them on the partitioned table.  Skip
 		 * if so.
 		 */
-		if (!repack_is_permitted_for_relation(cmd, table_oid, GetUserId()))
+		if (!repack_is_permitted_for_relation(stmt->command, table_oid,
+											  GetUserId()))
 			continue;
 
 		/* Use a permanent memory context for the result list */
@@ -2316,6 +2316,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		MemoryContextSwitchTo(oldcxt);
 	}
 
+	/* close parent relation, releasing lock on it */
+	table_close(rel, AccessExclusiveLock);
+
 	return rtcs;
 }
 
-- 
2.47.3


--f4uihmgjmvhgvze3--





^ permalink  raw  reply  [nested|flat] 50+ messages in thread

* [PATCH] change get_tables_to_repack_partitioned
@ 2026-07-09 14:55  Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 50+ messages in thread

From: Álvaro Herrera @ 2026-07-09 14:55 UTC (permalink / raw)

---
 src/backend/commands/repack.c | 127 +++++++++++++++++-----------------
 1 file changed, 65 insertions(+), 62 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index 02883fe34a4..b3589ceff51 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -169,8 +169,8 @@ static void copy_table_data(Relation NewHeap, Relation OldHeap, Relation OldInde
 							MultiXactId *pCutoffMulti);
 static List *get_tables_to_repack(RepackCommand cmd, bool usingindex,
 								  MemoryContext permcxt);
-static List *get_tables_to_repack_partitioned(RepackCommand cmd,
-											  Oid relid, bool rel_is_index,
+static List *get_tables_to_repack_partitioned(RepackStmt *stmt,
+											  Relation rel,
 											  MemoryContext permcxt);
 static bool repack_is_permitted_for_relation(RepackCommand cmd,
 											 Oid relid, Oid userid);
@@ -387,58 +387,8 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	}
 	else
 	{
-		Oid			relid;
-		bool		rel_is_index;
-
-		Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
-
-		/*
-		 * If USING INDEX was specified, resolve the index name now and pass
-		 * it down.
-		 */
-		if (stmt->usingindex)
-		{
-			/*
-			 * If no index name was specified when repacking a partitioned
-			 * table, punt for now.  Maybe we can improve this later.
-			 */
-			if (!stmt->indexname)
-			{
-				if (stmt->command == REPACK_COMMAND_CLUSTER)
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-							errmsg("there is no previously clustered index for table \"%s\"",
-								   RelationGetRelationName(rel)));
-				else
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-					/*- translator: first %s is name of a SQL command, eg. REPACK */
-							errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
-								   RepackCommandAsString(stmt->command),
-								   RelationGetRelationName(rel)));
-			}
-
-			relid = determine_clustered_index(rel, stmt->usingindex,
-											  stmt->indexname);
-			if (!OidIsValid(relid))
-				elog(ERROR, "unable to determine index to cluster on");
-			check_index_is_clusterable(rel, relid, AccessExclusiveLock);
-
-			rel_is_index = true;
-		}
-		else
-		{
-			relid = RelationGetRelid(rel);
-			rel_is_index = false;
-		}
-
-		rtcs = get_tables_to_repack_partitioned(stmt->command,
-												relid, rel_is_index,
-												repack_context);
-
-		/* close parent relation, releasing lock on it */
-		table_close(rel, AccessExclusiveLock);
-		rel = NULL;
+		rtcs = get_tables_to_repack_partitioned(stmt, rel, repack_context);
+		rel = NULL;			/* clobber no longer valid pointer */
 	}
 
 	/* Commit to get out of starting transaction */
@@ -2255,19 +2205,66 @@ get_tables_to_repack(RepackCommand cmd, bool usingindex, MemoryContext permcxt)
 }
 
 /*
- * Given a partitioned table or its index, return a list of RelToCluster for
- * all the leaf child tables/indexes.
+ * Resolve a partitioned table named as target of REPACK to the list of
+ * its partitions, and return it as a list of RelToCluster.
  *
- * 'rel_is_index' tells whether 'relid' is that of an index (true) or of the
- * owning relation.
+ * The partitioned table in question was already opened and locked by caller
+ * and is given as argument; it is closed and unlocked here before return.
  */
 static List *
-get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
-								 bool rel_is_index, MemoryContext permcxt)
+get_tables_to_repack_partitioned(RepackStmt *stmt, Relation rel,
+								 MemoryContext permcxt)
 {
+	Oid			relid;
+	bool		rel_is_index;
 	List	   *inhoids;
 	List	   *rtcs = NIL;
 
+	Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
+	Assert(CheckRelationLockedByMe(rel, AccessExclusiveLock, false));
+
+	/*
+	 * We find the list of tables by looking for inheritors.  If USING INDEX
+	 * was given, look for inheritors of that index, whose name we resolve now.
+	 *
+	 * Otherwise we look for inheritors of the table itself.
+	 */
+	if (stmt->usingindex)
+	{
+		/*
+		 * If no index name was specified when repacking a partitioned
+		 * table, punt for now.  Maybe we can improve this later.
+		 */
+		if (!stmt->indexname)
+		{
+			if (stmt->command == REPACK_COMMAND_CLUSTER)
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						errmsg("there is no previously clustered index for table \"%s\"",
+							   RelationGetRelationName(rel)));
+			else
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						/*- translator: first %s is name of a SQL command, eg. REPACK */
+						errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
+							   RepackCommandAsString(stmt->command),
+							   RelationGetRelationName(rel)));
+		}
+
+		relid = determine_clustered_index(rel, stmt->usingindex,
+										  stmt->indexname);
+		if (!OidIsValid(relid))
+			elog(ERROR, "unable to determine index to cluster on");
+		check_index_is_clusterable(rel, relid, AccessExclusiveLock);
+
+		rel_is_index = true;
+	}
+	else
+	{
+		relid = RelationGetRelid(rel);
+		rel_is_index = false;
+	}
+
 	/*
 	 * Do not lock the children until they're processed.  Note that we do hold
 	 * a lock on the parent partitioned table.
@@ -2286,7 +2283,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 			if (get_rel_relkind(child_oid) != RELKIND_INDEX)
 				continue;
 
-			table_oid = IndexGetRelation(child_oid, false);
+			table_oid = IndexGetRelation(child_oid, true);
+			if (!OidIsValid(table_oid))
+				continue;
 			index_oid = child_oid;
 		}
 		else
@@ -2304,7 +2303,8 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		 * leaf partition despite having them on the partitioned table.  Skip
 		 * if so.
 		 */
-		if (!repack_is_permitted_for_relation(cmd, table_oid, GetUserId()))
+		if (!repack_is_permitted_for_relation(stmt->command, table_oid,
+											  GetUserId()))
 			continue;
 
 		/* Use a permanent memory context for the result list */
@@ -2316,6 +2316,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		MemoryContextSwitchTo(oldcxt);
 	}
 
+	/* close parent relation, releasing lock on it */
+	table_close(rel, AccessExclusiveLock);
+
 	return rtcs;
 }
 
-- 
2.47.3


--f4uihmgjmvhgvze3--





^ permalink  raw  reply  [nested|flat] 50+ messages in thread

* [PATCH] change get_tables_to_repack_partitioned
@ 2026-07-09 14:55  Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 50+ messages in thread

From: Álvaro Herrera @ 2026-07-09 14:55 UTC (permalink / raw)

---
 src/backend/commands/repack.c | 127 +++++++++++++++++-----------------
 1 file changed, 65 insertions(+), 62 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index 02883fe34a4..b3589ceff51 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -169,8 +169,8 @@ static void copy_table_data(Relation NewHeap, Relation OldHeap, Relation OldInde
 							MultiXactId *pCutoffMulti);
 static List *get_tables_to_repack(RepackCommand cmd, bool usingindex,
 								  MemoryContext permcxt);
-static List *get_tables_to_repack_partitioned(RepackCommand cmd,
-											  Oid relid, bool rel_is_index,
+static List *get_tables_to_repack_partitioned(RepackStmt *stmt,
+											  Relation rel,
 											  MemoryContext permcxt);
 static bool repack_is_permitted_for_relation(RepackCommand cmd,
 											 Oid relid, Oid userid);
@@ -387,58 +387,8 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	}
 	else
 	{
-		Oid			relid;
-		bool		rel_is_index;
-
-		Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
-
-		/*
-		 * If USING INDEX was specified, resolve the index name now and pass
-		 * it down.
-		 */
-		if (stmt->usingindex)
-		{
-			/*
-			 * If no index name was specified when repacking a partitioned
-			 * table, punt for now.  Maybe we can improve this later.
-			 */
-			if (!stmt->indexname)
-			{
-				if (stmt->command == REPACK_COMMAND_CLUSTER)
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-							errmsg("there is no previously clustered index for table \"%s\"",
-								   RelationGetRelationName(rel)));
-				else
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-					/*- translator: first %s is name of a SQL command, eg. REPACK */
-							errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
-								   RepackCommandAsString(stmt->command),
-								   RelationGetRelationName(rel)));
-			}
-
-			relid = determine_clustered_index(rel, stmt->usingindex,
-											  stmt->indexname);
-			if (!OidIsValid(relid))
-				elog(ERROR, "unable to determine index to cluster on");
-			check_index_is_clusterable(rel, relid, AccessExclusiveLock);
-
-			rel_is_index = true;
-		}
-		else
-		{
-			relid = RelationGetRelid(rel);
-			rel_is_index = false;
-		}
-
-		rtcs = get_tables_to_repack_partitioned(stmt->command,
-												relid, rel_is_index,
-												repack_context);
-
-		/* close parent relation, releasing lock on it */
-		table_close(rel, AccessExclusiveLock);
-		rel = NULL;
+		rtcs = get_tables_to_repack_partitioned(stmt, rel, repack_context);
+		rel = NULL;			/* clobber no longer valid pointer */
 	}
 
 	/* Commit to get out of starting transaction */
@@ -2255,19 +2205,66 @@ get_tables_to_repack(RepackCommand cmd, bool usingindex, MemoryContext permcxt)
 }
 
 /*
- * Given a partitioned table or its index, return a list of RelToCluster for
- * all the leaf child tables/indexes.
+ * Resolve a partitioned table named as target of REPACK to the list of
+ * its partitions, and return it as a list of RelToCluster.
  *
- * 'rel_is_index' tells whether 'relid' is that of an index (true) or of the
- * owning relation.
+ * The partitioned table in question was already opened and locked by caller
+ * and is given as argument; it is closed and unlocked here before return.
  */
 static List *
-get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
-								 bool rel_is_index, MemoryContext permcxt)
+get_tables_to_repack_partitioned(RepackStmt *stmt, Relation rel,
+								 MemoryContext permcxt)
 {
+	Oid			relid;
+	bool		rel_is_index;
 	List	   *inhoids;
 	List	   *rtcs = NIL;
 
+	Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
+	Assert(CheckRelationLockedByMe(rel, AccessExclusiveLock, false));
+
+	/*
+	 * We find the list of tables by looking for inheritors.  If USING INDEX
+	 * was given, look for inheritors of that index, whose name we resolve now.
+	 *
+	 * Otherwise we look for inheritors of the table itself.
+	 */
+	if (stmt->usingindex)
+	{
+		/*
+		 * If no index name was specified when repacking a partitioned
+		 * table, punt for now.  Maybe we can improve this later.
+		 */
+		if (!stmt->indexname)
+		{
+			if (stmt->command == REPACK_COMMAND_CLUSTER)
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						errmsg("there is no previously clustered index for table \"%s\"",
+							   RelationGetRelationName(rel)));
+			else
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						/*- translator: first %s is name of a SQL command, eg. REPACK */
+						errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
+							   RepackCommandAsString(stmt->command),
+							   RelationGetRelationName(rel)));
+		}
+
+		relid = determine_clustered_index(rel, stmt->usingindex,
+										  stmt->indexname);
+		if (!OidIsValid(relid))
+			elog(ERROR, "unable to determine index to cluster on");
+		check_index_is_clusterable(rel, relid, AccessExclusiveLock);
+
+		rel_is_index = true;
+	}
+	else
+	{
+		relid = RelationGetRelid(rel);
+		rel_is_index = false;
+	}
+
 	/*
 	 * Do not lock the children until they're processed.  Note that we do hold
 	 * a lock on the parent partitioned table.
@@ -2286,7 +2283,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 			if (get_rel_relkind(child_oid) != RELKIND_INDEX)
 				continue;
 
-			table_oid = IndexGetRelation(child_oid, false);
+			table_oid = IndexGetRelation(child_oid, true);
+			if (!OidIsValid(table_oid))
+				continue;
 			index_oid = child_oid;
 		}
 		else
@@ -2304,7 +2303,8 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		 * leaf partition despite having them on the partitioned table.  Skip
 		 * if so.
 		 */
-		if (!repack_is_permitted_for_relation(cmd, table_oid, GetUserId()))
+		if (!repack_is_permitted_for_relation(stmt->command, table_oid,
+											  GetUserId()))
 			continue;
 
 		/* Use a permanent memory context for the result list */
@@ -2316,6 +2316,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		MemoryContextSwitchTo(oldcxt);
 	}
 
+	/* close parent relation, releasing lock on it */
+	table_close(rel, AccessExclusiveLock);
+
 	return rtcs;
 }
 
-- 
2.47.3


--f4uihmgjmvhgvze3--





^ permalink  raw  reply  [nested|flat] 50+ messages in thread

* [PATCH] change get_tables_to_repack_partitioned
@ 2026-07-09 14:55  Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 50+ messages in thread

From: Álvaro Herrera @ 2026-07-09 14:55 UTC (permalink / raw)

---
 src/backend/commands/repack.c | 127 +++++++++++++++++-----------------
 1 file changed, 65 insertions(+), 62 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index 02883fe34a4..b3589ceff51 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -169,8 +169,8 @@ static void copy_table_data(Relation NewHeap, Relation OldHeap, Relation OldInde
 							MultiXactId *pCutoffMulti);
 static List *get_tables_to_repack(RepackCommand cmd, bool usingindex,
 								  MemoryContext permcxt);
-static List *get_tables_to_repack_partitioned(RepackCommand cmd,
-											  Oid relid, bool rel_is_index,
+static List *get_tables_to_repack_partitioned(RepackStmt *stmt,
+											  Relation rel,
 											  MemoryContext permcxt);
 static bool repack_is_permitted_for_relation(RepackCommand cmd,
 											 Oid relid, Oid userid);
@@ -387,58 +387,8 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	}
 	else
 	{
-		Oid			relid;
-		bool		rel_is_index;
-
-		Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
-
-		/*
-		 * If USING INDEX was specified, resolve the index name now and pass
-		 * it down.
-		 */
-		if (stmt->usingindex)
-		{
-			/*
-			 * If no index name was specified when repacking a partitioned
-			 * table, punt for now.  Maybe we can improve this later.
-			 */
-			if (!stmt->indexname)
-			{
-				if (stmt->command == REPACK_COMMAND_CLUSTER)
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-							errmsg("there is no previously clustered index for table \"%s\"",
-								   RelationGetRelationName(rel)));
-				else
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-					/*- translator: first %s is name of a SQL command, eg. REPACK */
-							errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
-								   RepackCommandAsString(stmt->command),
-								   RelationGetRelationName(rel)));
-			}
-
-			relid = determine_clustered_index(rel, stmt->usingindex,
-											  stmt->indexname);
-			if (!OidIsValid(relid))
-				elog(ERROR, "unable to determine index to cluster on");
-			check_index_is_clusterable(rel, relid, AccessExclusiveLock);
-
-			rel_is_index = true;
-		}
-		else
-		{
-			relid = RelationGetRelid(rel);
-			rel_is_index = false;
-		}
-
-		rtcs = get_tables_to_repack_partitioned(stmt->command,
-												relid, rel_is_index,
-												repack_context);
-
-		/* close parent relation, releasing lock on it */
-		table_close(rel, AccessExclusiveLock);
-		rel = NULL;
+		rtcs = get_tables_to_repack_partitioned(stmt, rel, repack_context);
+		rel = NULL;			/* clobber no longer valid pointer */
 	}
 
 	/* Commit to get out of starting transaction */
@@ -2255,19 +2205,66 @@ get_tables_to_repack(RepackCommand cmd, bool usingindex, MemoryContext permcxt)
 }
 
 /*
- * Given a partitioned table or its index, return a list of RelToCluster for
- * all the leaf child tables/indexes.
+ * Resolve a partitioned table named as target of REPACK to the list of
+ * its partitions, and return it as a list of RelToCluster.
  *
- * 'rel_is_index' tells whether 'relid' is that of an index (true) or of the
- * owning relation.
+ * The partitioned table in question was already opened and locked by caller
+ * and is given as argument; it is closed and unlocked here before return.
  */
 static List *
-get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
-								 bool rel_is_index, MemoryContext permcxt)
+get_tables_to_repack_partitioned(RepackStmt *stmt, Relation rel,
+								 MemoryContext permcxt)
 {
+	Oid			relid;
+	bool		rel_is_index;
 	List	   *inhoids;
 	List	   *rtcs = NIL;
 
+	Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
+	Assert(CheckRelationLockedByMe(rel, AccessExclusiveLock, false));
+
+	/*
+	 * We find the list of tables by looking for inheritors.  If USING INDEX
+	 * was given, look for inheritors of that index, whose name we resolve now.
+	 *
+	 * Otherwise we look for inheritors of the table itself.
+	 */
+	if (stmt->usingindex)
+	{
+		/*
+		 * If no index name was specified when repacking a partitioned
+		 * table, punt for now.  Maybe we can improve this later.
+		 */
+		if (!stmt->indexname)
+		{
+			if (stmt->command == REPACK_COMMAND_CLUSTER)
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						errmsg("there is no previously clustered index for table \"%s\"",
+							   RelationGetRelationName(rel)));
+			else
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						/*- translator: first %s is name of a SQL command, eg. REPACK */
+						errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
+							   RepackCommandAsString(stmt->command),
+							   RelationGetRelationName(rel)));
+		}
+
+		relid = determine_clustered_index(rel, stmt->usingindex,
+										  stmt->indexname);
+		if (!OidIsValid(relid))
+			elog(ERROR, "unable to determine index to cluster on");
+		check_index_is_clusterable(rel, relid, AccessExclusiveLock);
+
+		rel_is_index = true;
+	}
+	else
+	{
+		relid = RelationGetRelid(rel);
+		rel_is_index = false;
+	}
+
 	/*
 	 * Do not lock the children until they're processed.  Note that we do hold
 	 * a lock on the parent partitioned table.
@@ -2286,7 +2283,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 			if (get_rel_relkind(child_oid) != RELKIND_INDEX)
 				continue;
 
-			table_oid = IndexGetRelation(child_oid, false);
+			table_oid = IndexGetRelation(child_oid, true);
+			if (!OidIsValid(table_oid))
+				continue;
 			index_oid = child_oid;
 		}
 		else
@@ -2304,7 +2303,8 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		 * leaf partition despite having them on the partitioned table.  Skip
 		 * if so.
 		 */
-		if (!repack_is_permitted_for_relation(cmd, table_oid, GetUserId()))
+		if (!repack_is_permitted_for_relation(stmt->command, table_oid,
+											  GetUserId()))
 			continue;
 
 		/* Use a permanent memory context for the result list */
@@ -2316,6 +2316,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		MemoryContextSwitchTo(oldcxt);
 	}
 
+	/* close parent relation, releasing lock on it */
+	table_close(rel, AccessExclusiveLock);
+
 	return rtcs;
 }
 
-- 
2.47.3


--f4uihmgjmvhgvze3--





^ permalink  raw  reply  [nested|flat] 50+ messages in thread

* [PATCH] change get_tables_to_repack_partitioned
@ 2026-07-09 14:55  Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 50+ messages in thread

From: Álvaro Herrera @ 2026-07-09 14:55 UTC (permalink / raw)

---
 src/backend/commands/repack.c | 127 +++++++++++++++++-----------------
 1 file changed, 65 insertions(+), 62 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index 02883fe34a4..b3589ceff51 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -169,8 +169,8 @@ static void copy_table_data(Relation NewHeap, Relation OldHeap, Relation OldInde
 							MultiXactId *pCutoffMulti);
 static List *get_tables_to_repack(RepackCommand cmd, bool usingindex,
 								  MemoryContext permcxt);
-static List *get_tables_to_repack_partitioned(RepackCommand cmd,
-											  Oid relid, bool rel_is_index,
+static List *get_tables_to_repack_partitioned(RepackStmt *stmt,
+											  Relation rel,
 											  MemoryContext permcxt);
 static bool repack_is_permitted_for_relation(RepackCommand cmd,
 											 Oid relid, Oid userid);
@@ -387,58 +387,8 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	}
 	else
 	{
-		Oid			relid;
-		bool		rel_is_index;
-
-		Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
-
-		/*
-		 * If USING INDEX was specified, resolve the index name now and pass
-		 * it down.
-		 */
-		if (stmt->usingindex)
-		{
-			/*
-			 * If no index name was specified when repacking a partitioned
-			 * table, punt for now.  Maybe we can improve this later.
-			 */
-			if (!stmt->indexname)
-			{
-				if (stmt->command == REPACK_COMMAND_CLUSTER)
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-							errmsg("there is no previously clustered index for table \"%s\"",
-								   RelationGetRelationName(rel)));
-				else
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-					/*- translator: first %s is name of a SQL command, eg. REPACK */
-							errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
-								   RepackCommandAsString(stmt->command),
-								   RelationGetRelationName(rel)));
-			}
-
-			relid = determine_clustered_index(rel, stmt->usingindex,
-											  stmt->indexname);
-			if (!OidIsValid(relid))
-				elog(ERROR, "unable to determine index to cluster on");
-			check_index_is_clusterable(rel, relid, AccessExclusiveLock);
-
-			rel_is_index = true;
-		}
-		else
-		{
-			relid = RelationGetRelid(rel);
-			rel_is_index = false;
-		}
-
-		rtcs = get_tables_to_repack_partitioned(stmt->command,
-												relid, rel_is_index,
-												repack_context);
-
-		/* close parent relation, releasing lock on it */
-		table_close(rel, AccessExclusiveLock);
-		rel = NULL;
+		rtcs = get_tables_to_repack_partitioned(stmt, rel, repack_context);
+		rel = NULL;			/* clobber no longer valid pointer */
 	}
 
 	/* Commit to get out of starting transaction */
@@ -2255,19 +2205,66 @@ get_tables_to_repack(RepackCommand cmd, bool usingindex, MemoryContext permcxt)
 }
 
 /*
- * Given a partitioned table or its index, return a list of RelToCluster for
- * all the leaf child tables/indexes.
+ * Resolve a partitioned table named as target of REPACK to the list of
+ * its partitions, and return it as a list of RelToCluster.
  *
- * 'rel_is_index' tells whether 'relid' is that of an index (true) or of the
- * owning relation.
+ * The partitioned table in question was already opened and locked by caller
+ * and is given as argument; it is closed and unlocked here before return.
  */
 static List *
-get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
-								 bool rel_is_index, MemoryContext permcxt)
+get_tables_to_repack_partitioned(RepackStmt *stmt, Relation rel,
+								 MemoryContext permcxt)
 {
+	Oid			relid;
+	bool		rel_is_index;
 	List	   *inhoids;
 	List	   *rtcs = NIL;
 
+	Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
+	Assert(CheckRelationLockedByMe(rel, AccessExclusiveLock, false));
+
+	/*
+	 * We find the list of tables by looking for inheritors.  If USING INDEX
+	 * was given, look for inheritors of that index, whose name we resolve now.
+	 *
+	 * Otherwise we look for inheritors of the table itself.
+	 */
+	if (stmt->usingindex)
+	{
+		/*
+		 * If no index name was specified when repacking a partitioned
+		 * table, punt for now.  Maybe we can improve this later.
+		 */
+		if (!stmt->indexname)
+		{
+			if (stmt->command == REPACK_COMMAND_CLUSTER)
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						errmsg("there is no previously clustered index for table \"%s\"",
+							   RelationGetRelationName(rel)));
+			else
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						/*- translator: first %s is name of a SQL command, eg. REPACK */
+						errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
+							   RepackCommandAsString(stmt->command),
+							   RelationGetRelationName(rel)));
+		}
+
+		relid = determine_clustered_index(rel, stmt->usingindex,
+										  stmt->indexname);
+		if (!OidIsValid(relid))
+			elog(ERROR, "unable to determine index to cluster on");
+		check_index_is_clusterable(rel, relid, AccessExclusiveLock);
+
+		rel_is_index = true;
+	}
+	else
+	{
+		relid = RelationGetRelid(rel);
+		rel_is_index = false;
+	}
+
 	/*
 	 * Do not lock the children until they're processed.  Note that we do hold
 	 * a lock on the parent partitioned table.
@@ -2286,7 +2283,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 			if (get_rel_relkind(child_oid) != RELKIND_INDEX)
 				continue;
 
-			table_oid = IndexGetRelation(child_oid, false);
+			table_oid = IndexGetRelation(child_oid, true);
+			if (!OidIsValid(table_oid))
+				continue;
 			index_oid = child_oid;
 		}
 		else
@@ -2304,7 +2303,8 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		 * leaf partition despite having them on the partitioned table.  Skip
 		 * if so.
 		 */
-		if (!repack_is_permitted_for_relation(cmd, table_oid, GetUserId()))
+		if (!repack_is_permitted_for_relation(stmt->command, table_oid,
+											  GetUserId()))
 			continue;
 
 		/* Use a permanent memory context for the result list */
@@ -2316,6 +2316,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		MemoryContextSwitchTo(oldcxt);
 	}
 
+	/* close parent relation, releasing lock on it */
+	table_close(rel, AccessExclusiveLock);
+
 	return rtcs;
 }
 
-- 
2.47.3


--f4uihmgjmvhgvze3--





^ permalink  raw  reply  [nested|flat] 50+ messages in thread

* [PATCH] change get_tables_to_repack_partitioned
@ 2026-07-09 14:55  Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 50+ messages in thread

From: Álvaro Herrera @ 2026-07-09 14:55 UTC (permalink / raw)

---
 src/backend/commands/repack.c | 127 +++++++++++++++++-----------------
 1 file changed, 65 insertions(+), 62 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index 02883fe34a4..b3589ceff51 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -169,8 +169,8 @@ static void copy_table_data(Relation NewHeap, Relation OldHeap, Relation OldInde
 							MultiXactId *pCutoffMulti);
 static List *get_tables_to_repack(RepackCommand cmd, bool usingindex,
 								  MemoryContext permcxt);
-static List *get_tables_to_repack_partitioned(RepackCommand cmd,
-											  Oid relid, bool rel_is_index,
+static List *get_tables_to_repack_partitioned(RepackStmt *stmt,
+											  Relation rel,
 											  MemoryContext permcxt);
 static bool repack_is_permitted_for_relation(RepackCommand cmd,
 											 Oid relid, Oid userid);
@@ -387,58 +387,8 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	}
 	else
 	{
-		Oid			relid;
-		bool		rel_is_index;
-
-		Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
-
-		/*
-		 * If USING INDEX was specified, resolve the index name now and pass
-		 * it down.
-		 */
-		if (stmt->usingindex)
-		{
-			/*
-			 * If no index name was specified when repacking a partitioned
-			 * table, punt for now.  Maybe we can improve this later.
-			 */
-			if (!stmt->indexname)
-			{
-				if (stmt->command == REPACK_COMMAND_CLUSTER)
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-							errmsg("there is no previously clustered index for table \"%s\"",
-								   RelationGetRelationName(rel)));
-				else
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-					/*- translator: first %s is name of a SQL command, eg. REPACK */
-							errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
-								   RepackCommandAsString(stmt->command),
-								   RelationGetRelationName(rel)));
-			}
-
-			relid = determine_clustered_index(rel, stmt->usingindex,
-											  stmt->indexname);
-			if (!OidIsValid(relid))
-				elog(ERROR, "unable to determine index to cluster on");
-			check_index_is_clusterable(rel, relid, AccessExclusiveLock);
-
-			rel_is_index = true;
-		}
-		else
-		{
-			relid = RelationGetRelid(rel);
-			rel_is_index = false;
-		}
-
-		rtcs = get_tables_to_repack_partitioned(stmt->command,
-												relid, rel_is_index,
-												repack_context);
-
-		/* close parent relation, releasing lock on it */
-		table_close(rel, AccessExclusiveLock);
-		rel = NULL;
+		rtcs = get_tables_to_repack_partitioned(stmt, rel, repack_context);
+		rel = NULL;			/* clobber no longer valid pointer */
 	}
 
 	/* Commit to get out of starting transaction */
@@ -2255,19 +2205,66 @@ get_tables_to_repack(RepackCommand cmd, bool usingindex, MemoryContext permcxt)
 }
 
 /*
- * Given a partitioned table or its index, return a list of RelToCluster for
- * all the leaf child tables/indexes.
+ * Resolve a partitioned table named as target of REPACK to the list of
+ * its partitions, and return it as a list of RelToCluster.
  *
- * 'rel_is_index' tells whether 'relid' is that of an index (true) or of the
- * owning relation.
+ * The partitioned table in question was already opened and locked by caller
+ * and is given as argument; it is closed and unlocked here before return.
  */
 static List *
-get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
-								 bool rel_is_index, MemoryContext permcxt)
+get_tables_to_repack_partitioned(RepackStmt *stmt, Relation rel,
+								 MemoryContext permcxt)
 {
+	Oid			relid;
+	bool		rel_is_index;
 	List	   *inhoids;
 	List	   *rtcs = NIL;
 
+	Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
+	Assert(CheckRelationLockedByMe(rel, AccessExclusiveLock, false));
+
+	/*
+	 * We find the list of tables by looking for inheritors.  If USING INDEX
+	 * was given, look for inheritors of that index, whose name we resolve now.
+	 *
+	 * Otherwise we look for inheritors of the table itself.
+	 */
+	if (stmt->usingindex)
+	{
+		/*
+		 * If no index name was specified when repacking a partitioned
+		 * table, punt for now.  Maybe we can improve this later.
+		 */
+		if (!stmt->indexname)
+		{
+			if (stmt->command == REPACK_COMMAND_CLUSTER)
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						errmsg("there is no previously clustered index for table \"%s\"",
+							   RelationGetRelationName(rel)));
+			else
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						/*- translator: first %s is name of a SQL command, eg. REPACK */
+						errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
+							   RepackCommandAsString(stmt->command),
+							   RelationGetRelationName(rel)));
+		}
+
+		relid = determine_clustered_index(rel, stmt->usingindex,
+										  stmt->indexname);
+		if (!OidIsValid(relid))
+			elog(ERROR, "unable to determine index to cluster on");
+		check_index_is_clusterable(rel, relid, AccessExclusiveLock);
+
+		rel_is_index = true;
+	}
+	else
+	{
+		relid = RelationGetRelid(rel);
+		rel_is_index = false;
+	}
+
 	/*
 	 * Do not lock the children until they're processed.  Note that we do hold
 	 * a lock on the parent partitioned table.
@@ -2286,7 +2283,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 			if (get_rel_relkind(child_oid) != RELKIND_INDEX)
 				continue;
 
-			table_oid = IndexGetRelation(child_oid, false);
+			table_oid = IndexGetRelation(child_oid, true);
+			if (!OidIsValid(table_oid))
+				continue;
 			index_oid = child_oid;
 		}
 		else
@@ -2304,7 +2303,8 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		 * leaf partition despite having them on the partitioned table.  Skip
 		 * if so.
 		 */
-		if (!repack_is_permitted_for_relation(cmd, table_oid, GetUserId()))
+		if (!repack_is_permitted_for_relation(stmt->command, table_oid,
+											  GetUserId()))
 			continue;
 
 		/* Use a permanent memory context for the result list */
@@ -2316,6 +2316,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		MemoryContextSwitchTo(oldcxt);
 	}
 
+	/* close parent relation, releasing lock on it */
+	table_close(rel, AccessExclusiveLock);
+
 	return rtcs;
 }
 
-- 
2.47.3


--f4uihmgjmvhgvze3--





^ permalink  raw  reply  [nested|flat] 50+ messages in thread

* [PATCH] change get_tables_to_repack_partitioned
@ 2026-07-09 14:55  Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 50+ messages in thread

From: Álvaro Herrera @ 2026-07-09 14:55 UTC (permalink / raw)

---
 src/backend/commands/repack.c | 127 +++++++++++++++++-----------------
 1 file changed, 65 insertions(+), 62 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index 02883fe34a4..b3589ceff51 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -169,8 +169,8 @@ static void copy_table_data(Relation NewHeap, Relation OldHeap, Relation OldInde
 							MultiXactId *pCutoffMulti);
 static List *get_tables_to_repack(RepackCommand cmd, bool usingindex,
 								  MemoryContext permcxt);
-static List *get_tables_to_repack_partitioned(RepackCommand cmd,
-											  Oid relid, bool rel_is_index,
+static List *get_tables_to_repack_partitioned(RepackStmt *stmt,
+											  Relation rel,
 											  MemoryContext permcxt);
 static bool repack_is_permitted_for_relation(RepackCommand cmd,
 											 Oid relid, Oid userid);
@@ -387,58 +387,8 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	}
 	else
 	{
-		Oid			relid;
-		bool		rel_is_index;
-
-		Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
-
-		/*
-		 * If USING INDEX was specified, resolve the index name now and pass
-		 * it down.
-		 */
-		if (stmt->usingindex)
-		{
-			/*
-			 * If no index name was specified when repacking a partitioned
-			 * table, punt for now.  Maybe we can improve this later.
-			 */
-			if (!stmt->indexname)
-			{
-				if (stmt->command == REPACK_COMMAND_CLUSTER)
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-							errmsg("there is no previously clustered index for table \"%s\"",
-								   RelationGetRelationName(rel)));
-				else
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-					/*- translator: first %s is name of a SQL command, eg. REPACK */
-							errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
-								   RepackCommandAsString(stmt->command),
-								   RelationGetRelationName(rel)));
-			}
-
-			relid = determine_clustered_index(rel, stmt->usingindex,
-											  stmt->indexname);
-			if (!OidIsValid(relid))
-				elog(ERROR, "unable to determine index to cluster on");
-			check_index_is_clusterable(rel, relid, AccessExclusiveLock);
-
-			rel_is_index = true;
-		}
-		else
-		{
-			relid = RelationGetRelid(rel);
-			rel_is_index = false;
-		}
-
-		rtcs = get_tables_to_repack_partitioned(stmt->command,
-												relid, rel_is_index,
-												repack_context);
-
-		/* close parent relation, releasing lock on it */
-		table_close(rel, AccessExclusiveLock);
-		rel = NULL;
+		rtcs = get_tables_to_repack_partitioned(stmt, rel, repack_context);
+		rel = NULL;			/* clobber no longer valid pointer */
 	}
 
 	/* Commit to get out of starting transaction */
@@ -2255,19 +2205,66 @@ get_tables_to_repack(RepackCommand cmd, bool usingindex, MemoryContext permcxt)
 }
 
 /*
- * Given a partitioned table or its index, return a list of RelToCluster for
- * all the leaf child tables/indexes.
+ * Resolve a partitioned table named as target of REPACK to the list of
+ * its partitions, and return it as a list of RelToCluster.
  *
- * 'rel_is_index' tells whether 'relid' is that of an index (true) or of the
- * owning relation.
+ * The partitioned table in question was already opened and locked by caller
+ * and is given as argument; it is closed and unlocked here before return.
  */
 static List *
-get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
-								 bool rel_is_index, MemoryContext permcxt)
+get_tables_to_repack_partitioned(RepackStmt *stmt, Relation rel,
+								 MemoryContext permcxt)
 {
+	Oid			relid;
+	bool		rel_is_index;
 	List	   *inhoids;
 	List	   *rtcs = NIL;
 
+	Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
+	Assert(CheckRelationLockedByMe(rel, AccessExclusiveLock, false));
+
+	/*
+	 * We find the list of tables by looking for inheritors.  If USING INDEX
+	 * was given, look for inheritors of that index, whose name we resolve now.
+	 *
+	 * Otherwise we look for inheritors of the table itself.
+	 */
+	if (stmt->usingindex)
+	{
+		/*
+		 * If no index name was specified when repacking a partitioned
+		 * table, punt for now.  Maybe we can improve this later.
+		 */
+		if (!stmt->indexname)
+		{
+			if (stmt->command == REPACK_COMMAND_CLUSTER)
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						errmsg("there is no previously clustered index for table \"%s\"",
+							   RelationGetRelationName(rel)));
+			else
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						/*- translator: first %s is name of a SQL command, eg. REPACK */
+						errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
+							   RepackCommandAsString(stmt->command),
+							   RelationGetRelationName(rel)));
+		}
+
+		relid = determine_clustered_index(rel, stmt->usingindex,
+										  stmt->indexname);
+		if (!OidIsValid(relid))
+			elog(ERROR, "unable to determine index to cluster on");
+		check_index_is_clusterable(rel, relid, AccessExclusiveLock);
+
+		rel_is_index = true;
+	}
+	else
+	{
+		relid = RelationGetRelid(rel);
+		rel_is_index = false;
+	}
+
 	/*
 	 * Do not lock the children until they're processed.  Note that we do hold
 	 * a lock on the parent partitioned table.
@@ -2286,7 +2283,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 			if (get_rel_relkind(child_oid) != RELKIND_INDEX)
 				continue;
 
-			table_oid = IndexGetRelation(child_oid, false);
+			table_oid = IndexGetRelation(child_oid, true);
+			if (!OidIsValid(table_oid))
+				continue;
 			index_oid = child_oid;
 		}
 		else
@@ -2304,7 +2303,8 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		 * leaf partition despite having them on the partitioned table.  Skip
 		 * if so.
 		 */
-		if (!repack_is_permitted_for_relation(cmd, table_oid, GetUserId()))
+		if (!repack_is_permitted_for_relation(stmt->command, table_oid,
+											  GetUserId()))
 			continue;
 
 		/* Use a permanent memory context for the result list */
@@ -2316,6 +2316,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		MemoryContextSwitchTo(oldcxt);
 	}
 
+	/* close parent relation, releasing lock on it */
+	table_close(rel, AccessExclusiveLock);
+
 	return rtcs;
 }
 
-- 
2.47.3


--f4uihmgjmvhgvze3--





^ permalink  raw  reply  [nested|flat] 50+ messages in thread

* [PATCH] change get_tables_to_repack_partitioned
@ 2026-07-09 14:55  Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 50+ messages in thread

From: Álvaro Herrera @ 2026-07-09 14:55 UTC (permalink / raw)

---
 src/backend/commands/repack.c | 127 +++++++++++++++++-----------------
 1 file changed, 65 insertions(+), 62 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index 02883fe34a4..b3589ceff51 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -169,8 +169,8 @@ static void copy_table_data(Relation NewHeap, Relation OldHeap, Relation OldInde
 							MultiXactId *pCutoffMulti);
 static List *get_tables_to_repack(RepackCommand cmd, bool usingindex,
 								  MemoryContext permcxt);
-static List *get_tables_to_repack_partitioned(RepackCommand cmd,
-											  Oid relid, bool rel_is_index,
+static List *get_tables_to_repack_partitioned(RepackStmt *stmt,
+											  Relation rel,
 											  MemoryContext permcxt);
 static bool repack_is_permitted_for_relation(RepackCommand cmd,
 											 Oid relid, Oid userid);
@@ -387,58 +387,8 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	}
 	else
 	{
-		Oid			relid;
-		bool		rel_is_index;
-
-		Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
-
-		/*
-		 * If USING INDEX was specified, resolve the index name now and pass
-		 * it down.
-		 */
-		if (stmt->usingindex)
-		{
-			/*
-			 * If no index name was specified when repacking a partitioned
-			 * table, punt for now.  Maybe we can improve this later.
-			 */
-			if (!stmt->indexname)
-			{
-				if (stmt->command == REPACK_COMMAND_CLUSTER)
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-							errmsg("there is no previously clustered index for table \"%s\"",
-								   RelationGetRelationName(rel)));
-				else
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-					/*- translator: first %s is name of a SQL command, eg. REPACK */
-							errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
-								   RepackCommandAsString(stmt->command),
-								   RelationGetRelationName(rel)));
-			}
-
-			relid = determine_clustered_index(rel, stmt->usingindex,
-											  stmt->indexname);
-			if (!OidIsValid(relid))
-				elog(ERROR, "unable to determine index to cluster on");
-			check_index_is_clusterable(rel, relid, AccessExclusiveLock);
-
-			rel_is_index = true;
-		}
-		else
-		{
-			relid = RelationGetRelid(rel);
-			rel_is_index = false;
-		}
-
-		rtcs = get_tables_to_repack_partitioned(stmt->command,
-												relid, rel_is_index,
-												repack_context);
-
-		/* close parent relation, releasing lock on it */
-		table_close(rel, AccessExclusiveLock);
-		rel = NULL;
+		rtcs = get_tables_to_repack_partitioned(stmt, rel, repack_context);
+		rel = NULL;			/* clobber no longer valid pointer */
 	}
 
 	/* Commit to get out of starting transaction */
@@ -2255,19 +2205,66 @@ get_tables_to_repack(RepackCommand cmd, bool usingindex, MemoryContext permcxt)
 }
 
 /*
- * Given a partitioned table or its index, return a list of RelToCluster for
- * all the leaf child tables/indexes.
+ * Resolve a partitioned table named as target of REPACK to the list of
+ * its partitions, and return it as a list of RelToCluster.
  *
- * 'rel_is_index' tells whether 'relid' is that of an index (true) or of the
- * owning relation.
+ * The partitioned table in question was already opened and locked by caller
+ * and is given as argument; it is closed and unlocked here before return.
  */
 static List *
-get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
-								 bool rel_is_index, MemoryContext permcxt)
+get_tables_to_repack_partitioned(RepackStmt *stmt, Relation rel,
+								 MemoryContext permcxt)
 {
+	Oid			relid;
+	bool		rel_is_index;
 	List	   *inhoids;
 	List	   *rtcs = NIL;
 
+	Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
+	Assert(CheckRelationLockedByMe(rel, AccessExclusiveLock, false));
+
+	/*
+	 * We find the list of tables by looking for inheritors.  If USING INDEX
+	 * was given, look for inheritors of that index, whose name we resolve now.
+	 *
+	 * Otherwise we look for inheritors of the table itself.
+	 */
+	if (stmt->usingindex)
+	{
+		/*
+		 * If no index name was specified when repacking a partitioned
+		 * table, punt for now.  Maybe we can improve this later.
+		 */
+		if (!stmt->indexname)
+		{
+			if (stmt->command == REPACK_COMMAND_CLUSTER)
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						errmsg("there is no previously clustered index for table \"%s\"",
+							   RelationGetRelationName(rel)));
+			else
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						/*- translator: first %s is name of a SQL command, eg. REPACK */
+						errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
+							   RepackCommandAsString(stmt->command),
+							   RelationGetRelationName(rel)));
+		}
+
+		relid = determine_clustered_index(rel, stmt->usingindex,
+										  stmt->indexname);
+		if (!OidIsValid(relid))
+			elog(ERROR, "unable to determine index to cluster on");
+		check_index_is_clusterable(rel, relid, AccessExclusiveLock);
+
+		rel_is_index = true;
+	}
+	else
+	{
+		relid = RelationGetRelid(rel);
+		rel_is_index = false;
+	}
+
 	/*
 	 * Do not lock the children until they're processed.  Note that we do hold
 	 * a lock on the parent partitioned table.
@@ -2286,7 +2283,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 			if (get_rel_relkind(child_oid) != RELKIND_INDEX)
 				continue;
 
-			table_oid = IndexGetRelation(child_oid, false);
+			table_oid = IndexGetRelation(child_oid, true);
+			if (!OidIsValid(table_oid))
+				continue;
 			index_oid = child_oid;
 		}
 		else
@@ -2304,7 +2303,8 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		 * leaf partition despite having them on the partitioned table.  Skip
 		 * if so.
 		 */
-		if (!repack_is_permitted_for_relation(cmd, table_oid, GetUserId()))
+		if (!repack_is_permitted_for_relation(stmt->command, table_oid,
+											  GetUserId()))
 			continue;
 
 		/* Use a permanent memory context for the result list */
@@ -2316,6 +2316,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		MemoryContextSwitchTo(oldcxt);
 	}
 
+	/* close parent relation, releasing lock on it */
+	table_close(rel, AccessExclusiveLock);
+
 	return rtcs;
 }
 
-- 
2.47.3


--f4uihmgjmvhgvze3--





^ permalink  raw  reply  [nested|flat] 50+ messages in thread

* [PATCH] change get_tables_to_repack_partitioned
@ 2026-07-09 14:55  Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 50+ messages in thread

From: Álvaro Herrera @ 2026-07-09 14:55 UTC (permalink / raw)

---
 src/backend/commands/repack.c | 127 +++++++++++++++++-----------------
 1 file changed, 65 insertions(+), 62 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index 02883fe34a4..b3589ceff51 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -169,8 +169,8 @@ static void copy_table_data(Relation NewHeap, Relation OldHeap, Relation OldInde
 							MultiXactId *pCutoffMulti);
 static List *get_tables_to_repack(RepackCommand cmd, bool usingindex,
 								  MemoryContext permcxt);
-static List *get_tables_to_repack_partitioned(RepackCommand cmd,
-											  Oid relid, bool rel_is_index,
+static List *get_tables_to_repack_partitioned(RepackStmt *stmt,
+											  Relation rel,
 											  MemoryContext permcxt);
 static bool repack_is_permitted_for_relation(RepackCommand cmd,
 											 Oid relid, Oid userid);
@@ -387,58 +387,8 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	}
 	else
 	{
-		Oid			relid;
-		bool		rel_is_index;
-
-		Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
-
-		/*
-		 * If USING INDEX was specified, resolve the index name now and pass
-		 * it down.
-		 */
-		if (stmt->usingindex)
-		{
-			/*
-			 * If no index name was specified when repacking a partitioned
-			 * table, punt for now.  Maybe we can improve this later.
-			 */
-			if (!stmt->indexname)
-			{
-				if (stmt->command == REPACK_COMMAND_CLUSTER)
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-							errmsg("there is no previously clustered index for table \"%s\"",
-								   RelationGetRelationName(rel)));
-				else
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-					/*- translator: first %s is name of a SQL command, eg. REPACK */
-							errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
-								   RepackCommandAsString(stmt->command),
-								   RelationGetRelationName(rel)));
-			}
-
-			relid = determine_clustered_index(rel, stmt->usingindex,
-											  stmt->indexname);
-			if (!OidIsValid(relid))
-				elog(ERROR, "unable to determine index to cluster on");
-			check_index_is_clusterable(rel, relid, AccessExclusiveLock);
-
-			rel_is_index = true;
-		}
-		else
-		{
-			relid = RelationGetRelid(rel);
-			rel_is_index = false;
-		}
-
-		rtcs = get_tables_to_repack_partitioned(stmt->command,
-												relid, rel_is_index,
-												repack_context);
-
-		/* close parent relation, releasing lock on it */
-		table_close(rel, AccessExclusiveLock);
-		rel = NULL;
+		rtcs = get_tables_to_repack_partitioned(stmt, rel, repack_context);
+		rel = NULL;			/* clobber no longer valid pointer */
 	}
 
 	/* Commit to get out of starting transaction */
@@ -2255,19 +2205,66 @@ get_tables_to_repack(RepackCommand cmd, bool usingindex, MemoryContext permcxt)
 }
 
 /*
- * Given a partitioned table or its index, return a list of RelToCluster for
- * all the leaf child tables/indexes.
+ * Resolve a partitioned table named as target of REPACK to the list of
+ * its partitions, and return it as a list of RelToCluster.
  *
- * 'rel_is_index' tells whether 'relid' is that of an index (true) or of the
- * owning relation.
+ * The partitioned table in question was already opened and locked by caller
+ * and is given as argument; it is closed and unlocked here before return.
  */
 static List *
-get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
-								 bool rel_is_index, MemoryContext permcxt)
+get_tables_to_repack_partitioned(RepackStmt *stmt, Relation rel,
+								 MemoryContext permcxt)
 {
+	Oid			relid;
+	bool		rel_is_index;
 	List	   *inhoids;
 	List	   *rtcs = NIL;
 
+	Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
+	Assert(CheckRelationLockedByMe(rel, AccessExclusiveLock, false));
+
+	/*
+	 * We find the list of tables by looking for inheritors.  If USING INDEX
+	 * was given, look for inheritors of that index, whose name we resolve now.
+	 *
+	 * Otherwise we look for inheritors of the table itself.
+	 */
+	if (stmt->usingindex)
+	{
+		/*
+		 * If no index name was specified when repacking a partitioned
+		 * table, punt for now.  Maybe we can improve this later.
+		 */
+		if (!stmt->indexname)
+		{
+			if (stmt->command == REPACK_COMMAND_CLUSTER)
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						errmsg("there is no previously clustered index for table \"%s\"",
+							   RelationGetRelationName(rel)));
+			else
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						/*- translator: first %s is name of a SQL command, eg. REPACK */
+						errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
+							   RepackCommandAsString(stmt->command),
+							   RelationGetRelationName(rel)));
+		}
+
+		relid = determine_clustered_index(rel, stmt->usingindex,
+										  stmt->indexname);
+		if (!OidIsValid(relid))
+			elog(ERROR, "unable to determine index to cluster on");
+		check_index_is_clusterable(rel, relid, AccessExclusiveLock);
+
+		rel_is_index = true;
+	}
+	else
+	{
+		relid = RelationGetRelid(rel);
+		rel_is_index = false;
+	}
+
 	/*
 	 * Do not lock the children until they're processed.  Note that we do hold
 	 * a lock on the parent partitioned table.
@@ -2286,7 +2283,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 			if (get_rel_relkind(child_oid) != RELKIND_INDEX)
 				continue;
 
-			table_oid = IndexGetRelation(child_oid, false);
+			table_oid = IndexGetRelation(child_oid, true);
+			if (!OidIsValid(table_oid))
+				continue;
 			index_oid = child_oid;
 		}
 		else
@@ -2304,7 +2303,8 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		 * leaf partition despite having them on the partitioned table.  Skip
 		 * if so.
 		 */
-		if (!repack_is_permitted_for_relation(cmd, table_oid, GetUserId()))
+		if (!repack_is_permitted_for_relation(stmt->command, table_oid,
+											  GetUserId()))
 			continue;
 
 		/* Use a permanent memory context for the result list */
@@ -2316,6 +2316,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		MemoryContextSwitchTo(oldcxt);
 	}
 
+	/* close parent relation, releasing lock on it */
+	table_close(rel, AccessExclusiveLock);
+
 	return rtcs;
 }
 
-- 
2.47.3


--f4uihmgjmvhgvze3--





^ permalink  raw  reply  [nested|flat] 50+ messages in thread

* [PATCH] change get_tables_to_repack_partitioned
@ 2026-07-09 14:55  Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 50+ messages in thread

From: Álvaro Herrera @ 2026-07-09 14:55 UTC (permalink / raw)

---
 src/backend/commands/repack.c | 127 +++++++++++++++++-----------------
 1 file changed, 65 insertions(+), 62 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index 02883fe34a4..b3589ceff51 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -169,8 +169,8 @@ static void copy_table_data(Relation NewHeap, Relation OldHeap, Relation OldInde
 							MultiXactId *pCutoffMulti);
 static List *get_tables_to_repack(RepackCommand cmd, bool usingindex,
 								  MemoryContext permcxt);
-static List *get_tables_to_repack_partitioned(RepackCommand cmd,
-											  Oid relid, bool rel_is_index,
+static List *get_tables_to_repack_partitioned(RepackStmt *stmt,
+											  Relation rel,
 											  MemoryContext permcxt);
 static bool repack_is_permitted_for_relation(RepackCommand cmd,
 											 Oid relid, Oid userid);
@@ -387,58 +387,8 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	}
 	else
 	{
-		Oid			relid;
-		bool		rel_is_index;
-
-		Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
-
-		/*
-		 * If USING INDEX was specified, resolve the index name now and pass
-		 * it down.
-		 */
-		if (stmt->usingindex)
-		{
-			/*
-			 * If no index name was specified when repacking a partitioned
-			 * table, punt for now.  Maybe we can improve this later.
-			 */
-			if (!stmt->indexname)
-			{
-				if (stmt->command == REPACK_COMMAND_CLUSTER)
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-							errmsg("there is no previously clustered index for table \"%s\"",
-								   RelationGetRelationName(rel)));
-				else
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-					/*- translator: first %s is name of a SQL command, eg. REPACK */
-							errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
-								   RepackCommandAsString(stmt->command),
-								   RelationGetRelationName(rel)));
-			}
-
-			relid = determine_clustered_index(rel, stmt->usingindex,
-											  stmt->indexname);
-			if (!OidIsValid(relid))
-				elog(ERROR, "unable to determine index to cluster on");
-			check_index_is_clusterable(rel, relid, AccessExclusiveLock);
-
-			rel_is_index = true;
-		}
-		else
-		{
-			relid = RelationGetRelid(rel);
-			rel_is_index = false;
-		}
-
-		rtcs = get_tables_to_repack_partitioned(stmt->command,
-												relid, rel_is_index,
-												repack_context);
-
-		/* close parent relation, releasing lock on it */
-		table_close(rel, AccessExclusiveLock);
-		rel = NULL;
+		rtcs = get_tables_to_repack_partitioned(stmt, rel, repack_context);
+		rel = NULL;			/* clobber no longer valid pointer */
 	}
 
 	/* Commit to get out of starting transaction */
@@ -2255,19 +2205,66 @@ get_tables_to_repack(RepackCommand cmd, bool usingindex, MemoryContext permcxt)
 }
 
 /*
- * Given a partitioned table or its index, return a list of RelToCluster for
- * all the leaf child tables/indexes.
+ * Resolve a partitioned table named as target of REPACK to the list of
+ * its partitions, and return it as a list of RelToCluster.
  *
- * 'rel_is_index' tells whether 'relid' is that of an index (true) or of the
- * owning relation.
+ * The partitioned table in question was already opened and locked by caller
+ * and is given as argument; it is closed and unlocked here before return.
  */
 static List *
-get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
-								 bool rel_is_index, MemoryContext permcxt)
+get_tables_to_repack_partitioned(RepackStmt *stmt, Relation rel,
+								 MemoryContext permcxt)
 {
+	Oid			relid;
+	bool		rel_is_index;
 	List	   *inhoids;
 	List	   *rtcs = NIL;
 
+	Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
+	Assert(CheckRelationLockedByMe(rel, AccessExclusiveLock, false));
+
+	/*
+	 * We find the list of tables by looking for inheritors.  If USING INDEX
+	 * was given, look for inheritors of that index, whose name we resolve now.
+	 *
+	 * Otherwise we look for inheritors of the table itself.
+	 */
+	if (stmt->usingindex)
+	{
+		/*
+		 * If no index name was specified when repacking a partitioned
+		 * table, punt for now.  Maybe we can improve this later.
+		 */
+		if (!stmt->indexname)
+		{
+			if (stmt->command == REPACK_COMMAND_CLUSTER)
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						errmsg("there is no previously clustered index for table \"%s\"",
+							   RelationGetRelationName(rel)));
+			else
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						/*- translator: first %s is name of a SQL command, eg. REPACK */
+						errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
+							   RepackCommandAsString(stmt->command),
+							   RelationGetRelationName(rel)));
+		}
+
+		relid = determine_clustered_index(rel, stmt->usingindex,
+										  stmt->indexname);
+		if (!OidIsValid(relid))
+			elog(ERROR, "unable to determine index to cluster on");
+		check_index_is_clusterable(rel, relid, AccessExclusiveLock);
+
+		rel_is_index = true;
+	}
+	else
+	{
+		relid = RelationGetRelid(rel);
+		rel_is_index = false;
+	}
+
 	/*
 	 * Do not lock the children until they're processed.  Note that we do hold
 	 * a lock on the parent partitioned table.
@@ -2286,7 +2283,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 			if (get_rel_relkind(child_oid) != RELKIND_INDEX)
 				continue;
 
-			table_oid = IndexGetRelation(child_oid, false);
+			table_oid = IndexGetRelation(child_oid, true);
+			if (!OidIsValid(table_oid))
+				continue;
 			index_oid = child_oid;
 		}
 		else
@@ -2304,7 +2303,8 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		 * leaf partition despite having them on the partitioned table.  Skip
 		 * if so.
 		 */
-		if (!repack_is_permitted_for_relation(cmd, table_oid, GetUserId()))
+		if (!repack_is_permitted_for_relation(stmt->command, table_oid,
+											  GetUserId()))
 			continue;
 
 		/* Use a permanent memory context for the result list */
@@ -2316,6 +2316,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		MemoryContextSwitchTo(oldcxt);
 	}
 
+	/* close parent relation, releasing lock on it */
+	table_close(rel, AccessExclusiveLock);
+
 	return rtcs;
 }
 
-- 
2.47.3


--f4uihmgjmvhgvze3--





^ permalink  raw  reply  [nested|flat] 50+ messages in thread

* [PATCH] change get_tables_to_repack_partitioned
@ 2026-07-09 14:55  Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 50+ messages in thread

From: Álvaro Herrera @ 2026-07-09 14:55 UTC (permalink / raw)

---
 src/backend/commands/repack.c | 127 +++++++++++++++++-----------------
 1 file changed, 65 insertions(+), 62 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index 02883fe34a4..b3589ceff51 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -169,8 +169,8 @@ static void copy_table_data(Relation NewHeap, Relation OldHeap, Relation OldInde
 							MultiXactId *pCutoffMulti);
 static List *get_tables_to_repack(RepackCommand cmd, bool usingindex,
 								  MemoryContext permcxt);
-static List *get_tables_to_repack_partitioned(RepackCommand cmd,
-											  Oid relid, bool rel_is_index,
+static List *get_tables_to_repack_partitioned(RepackStmt *stmt,
+											  Relation rel,
 											  MemoryContext permcxt);
 static bool repack_is_permitted_for_relation(RepackCommand cmd,
 											 Oid relid, Oid userid);
@@ -387,58 +387,8 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	}
 	else
 	{
-		Oid			relid;
-		bool		rel_is_index;
-
-		Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
-
-		/*
-		 * If USING INDEX was specified, resolve the index name now and pass
-		 * it down.
-		 */
-		if (stmt->usingindex)
-		{
-			/*
-			 * If no index name was specified when repacking a partitioned
-			 * table, punt for now.  Maybe we can improve this later.
-			 */
-			if (!stmt->indexname)
-			{
-				if (stmt->command == REPACK_COMMAND_CLUSTER)
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-							errmsg("there is no previously clustered index for table \"%s\"",
-								   RelationGetRelationName(rel)));
-				else
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-					/*- translator: first %s is name of a SQL command, eg. REPACK */
-							errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
-								   RepackCommandAsString(stmt->command),
-								   RelationGetRelationName(rel)));
-			}
-
-			relid = determine_clustered_index(rel, stmt->usingindex,
-											  stmt->indexname);
-			if (!OidIsValid(relid))
-				elog(ERROR, "unable to determine index to cluster on");
-			check_index_is_clusterable(rel, relid, AccessExclusiveLock);
-
-			rel_is_index = true;
-		}
-		else
-		{
-			relid = RelationGetRelid(rel);
-			rel_is_index = false;
-		}
-
-		rtcs = get_tables_to_repack_partitioned(stmt->command,
-												relid, rel_is_index,
-												repack_context);
-
-		/* close parent relation, releasing lock on it */
-		table_close(rel, AccessExclusiveLock);
-		rel = NULL;
+		rtcs = get_tables_to_repack_partitioned(stmt, rel, repack_context);
+		rel = NULL;			/* clobber no longer valid pointer */
 	}
 
 	/* Commit to get out of starting transaction */
@@ -2255,19 +2205,66 @@ get_tables_to_repack(RepackCommand cmd, bool usingindex, MemoryContext permcxt)
 }
 
 /*
- * Given a partitioned table or its index, return a list of RelToCluster for
- * all the leaf child tables/indexes.
+ * Resolve a partitioned table named as target of REPACK to the list of
+ * its partitions, and return it as a list of RelToCluster.
  *
- * 'rel_is_index' tells whether 'relid' is that of an index (true) or of the
- * owning relation.
+ * The partitioned table in question was already opened and locked by caller
+ * and is given as argument; it is closed and unlocked here before return.
  */
 static List *
-get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
-								 bool rel_is_index, MemoryContext permcxt)
+get_tables_to_repack_partitioned(RepackStmt *stmt, Relation rel,
+								 MemoryContext permcxt)
 {
+	Oid			relid;
+	bool		rel_is_index;
 	List	   *inhoids;
 	List	   *rtcs = NIL;
 
+	Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
+	Assert(CheckRelationLockedByMe(rel, AccessExclusiveLock, false));
+
+	/*
+	 * We find the list of tables by looking for inheritors.  If USING INDEX
+	 * was given, look for inheritors of that index, whose name we resolve now.
+	 *
+	 * Otherwise we look for inheritors of the table itself.
+	 */
+	if (stmt->usingindex)
+	{
+		/*
+		 * If no index name was specified when repacking a partitioned
+		 * table, punt for now.  Maybe we can improve this later.
+		 */
+		if (!stmt->indexname)
+		{
+			if (stmt->command == REPACK_COMMAND_CLUSTER)
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						errmsg("there is no previously clustered index for table \"%s\"",
+							   RelationGetRelationName(rel)));
+			else
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						/*- translator: first %s is name of a SQL command, eg. REPACK */
+						errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
+							   RepackCommandAsString(stmt->command),
+							   RelationGetRelationName(rel)));
+		}
+
+		relid = determine_clustered_index(rel, stmt->usingindex,
+										  stmt->indexname);
+		if (!OidIsValid(relid))
+			elog(ERROR, "unable to determine index to cluster on");
+		check_index_is_clusterable(rel, relid, AccessExclusiveLock);
+
+		rel_is_index = true;
+	}
+	else
+	{
+		relid = RelationGetRelid(rel);
+		rel_is_index = false;
+	}
+
 	/*
 	 * Do not lock the children until they're processed.  Note that we do hold
 	 * a lock on the parent partitioned table.
@@ -2286,7 +2283,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 			if (get_rel_relkind(child_oid) != RELKIND_INDEX)
 				continue;
 
-			table_oid = IndexGetRelation(child_oid, false);
+			table_oid = IndexGetRelation(child_oid, true);
+			if (!OidIsValid(table_oid))
+				continue;
 			index_oid = child_oid;
 		}
 		else
@@ -2304,7 +2303,8 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		 * leaf partition despite having them on the partitioned table.  Skip
 		 * if so.
 		 */
-		if (!repack_is_permitted_for_relation(cmd, table_oid, GetUserId()))
+		if (!repack_is_permitted_for_relation(stmt->command, table_oid,
+											  GetUserId()))
 			continue;
 
 		/* Use a permanent memory context for the result list */
@@ -2316,6 +2316,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		MemoryContextSwitchTo(oldcxt);
 	}
 
+	/* close parent relation, releasing lock on it */
+	table_close(rel, AccessExclusiveLock);
+
 	return rtcs;
 }
 
-- 
2.47.3


--f4uihmgjmvhgvze3--





^ permalink  raw  reply  [nested|flat] 50+ messages in thread

* [PATCH] change get_tables_to_repack_partitioned
@ 2026-07-09 14:55  Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 50+ messages in thread

From: Álvaro Herrera @ 2026-07-09 14:55 UTC (permalink / raw)

---
 src/backend/commands/repack.c | 127 +++++++++++++++++-----------------
 1 file changed, 65 insertions(+), 62 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index 02883fe34a4..b3589ceff51 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -169,8 +169,8 @@ static void copy_table_data(Relation NewHeap, Relation OldHeap, Relation OldInde
 							MultiXactId *pCutoffMulti);
 static List *get_tables_to_repack(RepackCommand cmd, bool usingindex,
 								  MemoryContext permcxt);
-static List *get_tables_to_repack_partitioned(RepackCommand cmd,
-											  Oid relid, bool rel_is_index,
+static List *get_tables_to_repack_partitioned(RepackStmt *stmt,
+											  Relation rel,
 											  MemoryContext permcxt);
 static bool repack_is_permitted_for_relation(RepackCommand cmd,
 											 Oid relid, Oid userid);
@@ -387,58 +387,8 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	}
 	else
 	{
-		Oid			relid;
-		bool		rel_is_index;
-
-		Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
-
-		/*
-		 * If USING INDEX was specified, resolve the index name now and pass
-		 * it down.
-		 */
-		if (stmt->usingindex)
-		{
-			/*
-			 * If no index name was specified when repacking a partitioned
-			 * table, punt for now.  Maybe we can improve this later.
-			 */
-			if (!stmt->indexname)
-			{
-				if (stmt->command == REPACK_COMMAND_CLUSTER)
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-							errmsg("there is no previously clustered index for table \"%s\"",
-								   RelationGetRelationName(rel)));
-				else
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-					/*- translator: first %s is name of a SQL command, eg. REPACK */
-							errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
-								   RepackCommandAsString(stmt->command),
-								   RelationGetRelationName(rel)));
-			}
-
-			relid = determine_clustered_index(rel, stmt->usingindex,
-											  stmt->indexname);
-			if (!OidIsValid(relid))
-				elog(ERROR, "unable to determine index to cluster on");
-			check_index_is_clusterable(rel, relid, AccessExclusiveLock);
-
-			rel_is_index = true;
-		}
-		else
-		{
-			relid = RelationGetRelid(rel);
-			rel_is_index = false;
-		}
-
-		rtcs = get_tables_to_repack_partitioned(stmt->command,
-												relid, rel_is_index,
-												repack_context);
-
-		/* close parent relation, releasing lock on it */
-		table_close(rel, AccessExclusiveLock);
-		rel = NULL;
+		rtcs = get_tables_to_repack_partitioned(stmt, rel, repack_context);
+		rel = NULL;			/* clobber no longer valid pointer */
 	}
 
 	/* Commit to get out of starting transaction */
@@ -2255,19 +2205,66 @@ get_tables_to_repack(RepackCommand cmd, bool usingindex, MemoryContext permcxt)
 }
 
 /*
- * Given a partitioned table or its index, return a list of RelToCluster for
- * all the leaf child tables/indexes.
+ * Resolve a partitioned table named as target of REPACK to the list of
+ * its partitions, and return it as a list of RelToCluster.
  *
- * 'rel_is_index' tells whether 'relid' is that of an index (true) or of the
- * owning relation.
+ * The partitioned table in question was already opened and locked by caller
+ * and is given as argument; it is closed and unlocked here before return.
  */
 static List *
-get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
-								 bool rel_is_index, MemoryContext permcxt)
+get_tables_to_repack_partitioned(RepackStmt *stmt, Relation rel,
+								 MemoryContext permcxt)
 {
+	Oid			relid;
+	bool		rel_is_index;
 	List	   *inhoids;
 	List	   *rtcs = NIL;
 
+	Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
+	Assert(CheckRelationLockedByMe(rel, AccessExclusiveLock, false));
+
+	/*
+	 * We find the list of tables by looking for inheritors.  If USING INDEX
+	 * was given, look for inheritors of that index, whose name we resolve now.
+	 *
+	 * Otherwise we look for inheritors of the table itself.
+	 */
+	if (stmt->usingindex)
+	{
+		/*
+		 * If no index name was specified when repacking a partitioned
+		 * table, punt for now.  Maybe we can improve this later.
+		 */
+		if (!stmt->indexname)
+		{
+			if (stmt->command == REPACK_COMMAND_CLUSTER)
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						errmsg("there is no previously clustered index for table \"%s\"",
+							   RelationGetRelationName(rel)));
+			else
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						/*- translator: first %s is name of a SQL command, eg. REPACK */
+						errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
+							   RepackCommandAsString(stmt->command),
+							   RelationGetRelationName(rel)));
+		}
+
+		relid = determine_clustered_index(rel, stmt->usingindex,
+										  stmt->indexname);
+		if (!OidIsValid(relid))
+			elog(ERROR, "unable to determine index to cluster on");
+		check_index_is_clusterable(rel, relid, AccessExclusiveLock);
+
+		rel_is_index = true;
+	}
+	else
+	{
+		relid = RelationGetRelid(rel);
+		rel_is_index = false;
+	}
+
 	/*
 	 * Do not lock the children until they're processed.  Note that we do hold
 	 * a lock on the parent partitioned table.
@@ -2286,7 +2283,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 			if (get_rel_relkind(child_oid) != RELKIND_INDEX)
 				continue;
 
-			table_oid = IndexGetRelation(child_oid, false);
+			table_oid = IndexGetRelation(child_oid, true);
+			if (!OidIsValid(table_oid))
+				continue;
 			index_oid = child_oid;
 		}
 		else
@@ -2304,7 +2303,8 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		 * leaf partition despite having them on the partitioned table.  Skip
 		 * if so.
 		 */
-		if (!repack_is_permitted_for_relation(cmd, table_oid, GetUserId()))
+		if (!repack_is_permitted_for_relation(stmt->command, table_oid,
+											  GetUserId()))
 			continue;
 
 		/* Use a permanent memory context for the result list */
@@ -2316,6 +2316,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		MemoryContextSwitchTo(oldcxt);
 	}
 
+	/* close parent relation, releasing lock on it */
+	table_close(rel, AccessExclusiveLock);
+
 	return rtcs;
 }
 
-- 
2.47.3


--f4uihmgjmvhgvze3--





^ permalink  raw  reply  [nested|flat] 50+ messages in thread

* [PATCH] change get_tables_to_repack_partitioned
@ 2026-07-09 14:55  Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 50+ messages in thread

From: Álvaro Herrera @ 2026-07-09 14:55 UTC (permalink / raw)

---
 src/backend/commands/repack.c | 127 +++++++++++++++++-----------------
 1 file changed, 65 insertions(+), 62 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index 02883fe34a4..b3589ceff51 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -169,8 +169,8 @@ static void copy_table_data(Relation NewHeap, Relation OldHeap, Relation OldInde
 							MultiXactId *pCutoffMulti);
 static List *get_tables_to_repack(RepackCommand cmd, bool usingindex,
 								  MemoryContext permcxt);
-static List *get_tables_to_repack_partitioned(RepackCommand cmd,
-											  Oid relid, bool rel_is_index,
+static List *get_tables_to_repack_partitioned(RepackStmt *stmt,
+											  Relation rel,
 											  MemoryContext permcxt);
 static bool repack_is_permitted_for_relation(RepackCommand cmd,
 											 Oid relid, Oid userid);
@@ -387,58 +387,8 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	}
 	else
 	{
-		Oid			relid;
-		bool		rel_is_index;
-
-		Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
-
-		/*
-		 * If USING INDEX was specified, resolve the index name now and pass
-		 * it down.
-		 */
-		if (stmt->usingindex)
-		{
-			/*
-			 * If no index name was specified when repacking a partitioned
-			 * table, punt for now.  Maybe we can improve this later.
-			 */
-			if (!stmt->indexname)
-			{
-				if (stmt->command == REPACK_COMMAND_CLUSTER)
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-							errmsg("there is no previously clustered index for table \"%s\"",
-								   RelationGetRelationName(rel)));
-				else
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-					/*- translator: first %s is name of a SQL command, eg. REPACK */
-							errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
-								   RepackCommandAsString(stmt->command),
-								   RelationGetRelationName(rel)));
-			}
-
-			relid = determine_clustered_index(rel, stmt->usingindex,
-											  stmt->indexname);
-			if (!OidIsValid(relid))
-				elog(ERROR, "unable to determine index to cluster on");
-			check_index_is_clusterable(rel, relid, AccessExclusiveLock);
-
-			rel_is_index = true;
-		}
-		else
-		{
-			relid = RelationGetRelid(rel);
-			rel_is_index = false;
-		}
-
-		rtcs = get_tables_to_repack_partitioned(stmt->command,
-												relid, rel_is_index,
-												repack_context);
-
-		/* close parent relation, releasing lock on it */
-		table_close(rel, AccessExclusiveLock);
-		rel = NULL;
+		rtcs = get_tables_to_repack_partitioned(stmt, rel, repack_context);
+		rel = NULL;			/* clobber no longer valid pointer */
 	}
 
 	/* Commit to get out of starting transaction */
@@ -2255,19 +2205,66 @@ get_tables_to_repack(RepackCommand cmd, bool usingindex, MemoryContext permcxt)
 }
 
 /*
- * Given a partitioned table or its index, return a list of RelToCluster for
- * all the leaf child tables/indexes.
+ * Resolve a partitioned table named as target of REPACK to the list of
+ * its partitions, and return it as a list of RelToCluster.
  *
- * 'rel_is_index' tells whether 'relid' is that of an index (true) or of the
- * owning relation.
+ * The partitioned table in question was already opened and locked by caller
+ * and is given as argument; it is closed and unlocked here before return.
  */
 static List *
-get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
-								 bool rel_is_index, MemoryContext permcxt)
+get_tables_to_repack_partitioned(RepackStmt *stmt, Relation rel,
+								 MemoryContext permcxt)
 {
+	Oid			relid;
+	bool		rel_is_index;
 	List	   *inhoids;
 	List	   *rtcs = NIL;
 
+	Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
+	Assert(CheckRelationLockedByMe(rel, AccessExclusiveLock, false));
+
+	/*
+	 * We find the list of tables by looking for inheritors.  If USING INDEX
+	 * was given, look for inheritors of that index, whose name we resolve now.
+	 *
+	 * Otherwise we look for inheritors of the table itself.
+	 */
+	if (stmt->usingindex)
+	{
+		/*
+		 * If no index name was specified when repacking a partitioned
+		 * table, punt for now.  Maybe we can improve this later.
+		 */
+		if (!stmt->indexname)
+		{
+			if (stmt->command == REPACK_COMMAND_CLUSTER)
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						errmsg("there is no previously clustered index for table \"%s\"",
+							   RelationGetRelationName(rel)));
+			else
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						/*- translator: first %s is name of a SQL command, eg. REPACK */
+						errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
+							   RepackCommandAsString(stmt->command),
+							   RelationGetRelationName(rel)));
+		}
+
+		relid = determine_clustered_index(rel, stmt->usingindex,
+										  stmt->indexname);
+		if (!OidIsValid(relid))
+			elog(ERROR, "unable to determine index to cluster on");
+		check_index_is_clusterable(rel, relid, AccessExclusiveLock);
+
+		rel_is_index = true;
+	}
+	else
+	{
+		relid = RelationGetRelid(rel);
+		rel_is_index = false;
+	}
+
 	/*
 	 * Do not lock the children until they're processed.  Note that we do hold
 	 * a lock on the parent partitioned table.
@@ -2286,7 +2283,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 			if (get_rel_relkind(child_oid) != RELKIND_INDEX)
 				continue;
 
-			table_oid = IndexGetRelation(child_oid, false);
+			table_oid = IndexGetRelation(child_oid, true);
+			if (!OidIsValid(table_oid))
+				continue;
 			index_oid = child_oid;
 		}
 		else
@@ -2304,7 +2303,8 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		 * leaf partition despite having them on the partitioned table.  Skip
 		 * if so.
 		 */
-		if (!repack_is_permitted_for_relation(cmd, table_oid, GetUserId()))
+		if (!repack_is_permitted_for_relation(stmt->command, table_oid,
+											  GetUserId()))
 			continue;
 
 		/* Use a permanent memory context for the result list */
@@ -2316,6 +2316,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		MemoryContextSwitchTo(oldcxt);
 	}
 
+	/* close parent relation, releasing lock on it */
+	table_close(rel, AccessExclusiveLock);
+
 	return rtcs;
 }
 
-- 
2.47.3


--f4uihmgjmvhgvze3--





^ permalink  raw  reply  [nested|flat] 50+ messages in thread

* [PATCH] change get_tables_to_repack_partitioned
@ 2026-07-09 14:55  Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 50+ messages in thread

From: Álvaro Herrera @ 2026-07-09 14:55 UTC (permalink / raw)

---
 src/backend/commands/repack.c | 127 +++++++++++++++++-----------------
 1 file changed, 65 insertions(+), 62 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index 02883fe34a4..b3589ceff51 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -169,8 +169,8 @@ static void copy_table_data(Relation NewHeap, Relation OldHeap, Relation OldInde
 							MultiXactId *pCutoffMulti);
 static List *get_tables_to_repack(RepackCommand cmd, bool usingindex,
 								  MemoryContext permcxt);
-static List *get_tables_to_repack_partitioned(RepackCommand cmd,
-											  Oid relid, bool rel_is_index,
+static List *get_tables_to_repack_partitioned(RepackStmt *stmt,
+											  Relation rel,
 											  MemoryContext permcxt);
 static bool repack_is_permitted_for_relation(RepackCommand cmd,
 											 Oid relid, Oid userid);
@@ -387,58 +387,8 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	}
 	else
 	{
-		Oid			relid;
-		bool		rel_is_index;
-
-		Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
-
-		/*
-		 * If USING INDEX was specified, resolve the index name now and pass
-		 * it down.
-		 */
-		if (stmt->usingindex)
-		{
-			/*
-			 * If no index name was specified when repacking a partitioned
-			 * table, punt for now.  Maybe we can improve this later.
-			 */
-			if (!stmt->indexname)
-			{
-				if (stmt->command == REPACK_COMMAND_CLUSTER)
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-							errmsg("there is no previously clustered index for table \"%s\"",
-								   RelationGetRelationName(rel)));
-				else
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-					/*- translator: first %s is name of a SQL command, eg. REPACK */
-							errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
-								   RepackCommandAsString(stmt->command),
-								   RelationGetRelationName(rel)));
-			}
-
-			relid = determine_clustered_index(rel, stmt->usingindex,
-											  stmt->indexname);
-			if (!OidIsValid(relid))
-				elog(ERROR, "unable to determine index to cluster on");
-			check_index_is_clusterable(rel, relid, AccessExclusiveLock);
-
-			rel_is_index = true;
-		}
-		else
-		{
-			relid = RelationGetRelid(rel);
-			rel_is_index = false;
-		}
-
-		rtcs = get_tables_to_repack_partitioned(stmt->command,
-												relid, rel_is_index,
-												repack_context);
-
-		/* close parent relation, releasing lock on it */
-		table_close(rel, AccessExclusiveLock);
-		rel = NULL;
+		rtcs = get_tables_to_repack_partitioned(stmt, rel, repack_context);
+		rel = NULL;			/* clobber no longer valid pointer */
 	}
 
 	/* Commit to get out of starting transaction */
@@ -2255,19 +2205,66 @@ get_tables_to_repack(RepackCommand cmd, bool usingindex, MemoryContext permcxt)
 }
 
 /*
- * Given a partitioned table or its index, return a list of RelToCluster for
- * all the leaf child tables/indexes.
+ * Resolve a partitioned table named as target of REPACK to the list of
+ * its partitions, and return it as a list of RelToCluster.
  *
- * 'rel_is_index' tells whether 'relid' is that of an index (true) or of the
- * owning relation.
+ * The partitioned table in question was already opened and locked by caller
+ * and is given as argument; it is closed and unlocked here before return.
  */
 static List *
-get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
-								 bool rel_is_index, MemoryContext permcxt)
+get_tables_to_repack_partitioned(RepackStmt *stmt, Relation rel,
+								 MemoryContext permcxt)
 {
+	Oid			relid;
+	bool		rel_is_index;
 	List	   *inhoids;
 	List	   *rtcs = NIL;
 
+	Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
+	Assert(CheckRelationLockedByMe(rel, AccessExclusiveLock, false));
+
+	/*
+	 * We find the list of tables by looking for inheritors.  If USING INDEX
+	 * was given, look for inheritors of that index, whose name we resolve now.
+	 *
+	 * Otherwise we look for inheritors of the table itself.
+	 */
+	if (stmt->usingindex)
+	{
+		/*
+		 * If no index name was specified when repacking a partitioned
+		 * table, punt for now.  Maybe we can improve this later.
+		 */
+		if (!stmt->indexname)
+		{
+			if (stmt->command == REPACK_COMMAND_CLUSTER)
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						errmsg("there is no previously clustered index for table \"%s\"",
+							   RelationGetRelationName(rel)));
+			else
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						/*- translator: first %s is name of a SQL command, eg. REPACK */
+						errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
+							   RepackCommandAsString(stmt->command),
+							   RelationGetRelationName(rel)));
+		}
+
+		relid = determine_clustered_index(rel, stmt->usingindex,
+										  stmt->indexname);
+		if (!OidIsValid(relid))
+			elog(ERROR, "unable to determine index to cluster on");
+		check_index_is_clusterable(rel, relid, AccessExclusiveLock);
+
+		rel_is_index = true;
+	}
+	else
+	{
+		relid = RelationGetRelid(rel);
+		rel_is_index = false;
+	}
+
 	/*
 	 * Do not lock the children until they're processed.  Note that we do hold
 	 * a lock on the parent partitioned table.
@@ -2286,7 +2283,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 			if (get_rel_relkind(child_oid) != RELKIND_INDEX)
 				continue;
 
-			table_oid = IndexGetRelation(child_oid, false);
+			table_oid = IndexGetRelation(child_oid, true);
+			if (!OidIsValid(table_oid))
+				continue;
 			index_oid = child_oid;
 		}
 		else
@@ -2304,7 +2303,8 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		 * leaf partition despite having them on the partitioned table.  Skip
 		 * if so.
 		 */
-		if (!repack_is_permitted_for_relation(cmd, table_oid, GetUserId()))
+		if (!repack_is_permitted_for_relation(stmt->command, table_oid,
+											  GetUserId()))
 			continue;
 
 		/* Use a permanent memory context for the result list */
@@ -2316,6 +2316,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		MemoryContextSwitchTo(oldcxt);
 	}
 
+	/* close parent relation, releasing lock on it */
+	table_close(rel, AccessExclusiveLock);
+
 	return rtcs;
 }
 
-- 
2.47.3


--f4uihmgjmvhgvze3--





^ permalink  raw  reply  [nested|flat] 50+ messages in thread

* [PATCH] change get_tables_to_repack_partitioned
@ 2026-07-09 14:55  Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 50+ messages in thread

From: Álvaro Herrera @ 2026-07-09 14:55 UTC (permalink / raw)

---
 src/backend/commands/repack.c | 127 +++++++++++++++++-----------------
 1 file changed, 65 insertions(+), 62 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index 02883fe34a4..b3589ceff51 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -169,8 +169,8 @@ static void copy_table_data(Relation NewHeap, Relation OldHeap, Relation OldInde
 							MultiXactId *pCutoffMulti);
 static List *get_tables_to_repack(RepackCommand cmd, bool usingindex,
 								  MemoryContext permcxt);
-static List *get_tables_to_repack_partitioned(RepackCommand cmd,
-											  Oid relid, bool rel_is_index,
+static List *get_tables_to_repack_partitioned(RepackStmt *stmt,
+											  Relation rel,
 											  MemoryContext permcxt);
 static bool repack_is_permitted_for_relation(RepackCommand cmd,
 											 Oid relid, Oid userid);
@@ -387,58 +387,8 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	}
 	else
 	{
-		Oid			relid;
-		bool		rel_is_index;
-
-		Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
-
-		/*
-		 * If USING INDEX was specified, resolve the index name now and pass
-		 * it down.
-		 */
-		if (stmt->usingindex)
-		{
-			/*
-			 * If no index name was specified when repacking a partitioned
-			 * table, punt for now.  Maybe we can improve this later.
-			 */
-			if (!stmt->indexname)
-			{
-				if (stmt->command == REPACK_COMMAND_CLUSTER)
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-							errmsg("there is no previously clustered index for table \"%s\"",
-								   RelationGetRelationName(rel)));
-				else
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-					/*- translator: first %s is name of a SQL command, eg. REPACK */
-							errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
-								   RepackCommandAsString(stmt->command),
-								   RelationGetRelationName(rel)));
-			}
-
-			relid = determine_clustered_index(rel, stmt->usingindex,
-											  stmt->indexname);
-			if (!OidIsValid(relid))
-				elog(ERROR, "unable to determine index to cluster on");
-			check_index_is_clusterable(rel, relid, AccessExclusiveLock);
-
-			rel_is_index = true;
-		}
-		else
-		{
-			relid = RelationGetRelid(rel);
-			rel_is_index = false;
-		}
-
-		rtcs = get_tables_to_repack_partitioned(stmt->command,
-												relid, rel_is_index,
-												repack_context);
-
-		/* close parent relation, releasing lock on it */
-		table_close(rel, AccessExclusiveLock);
-		rel = NULL;
+		rtcs = get_tables_to_repack_partitioned(stmt, rel, repack_context);
+		rel = NULL;			/* clobber no longer valid pointer */
 	}
 
 	/* Commit to get out of starting transaction */
@@ -2255,19 +2205,66 @@ get_tables_to_repack(RepackCommand cmd, bool usingindex, MemoryContext permcxt)
 }
 
 /*
- * Given a partitioned table or its index, return a list of RelToCluster for
- * all the leaf child tables/indexes.
+ * Resolve a partitioned table named as target of REPACK to the list of
+ * its partitions, and return it as a list of RelToCluster.
  *
- * 'rel_is_index' tells whether 'relid' is that of an index (true) or of the
- * owning relation.
+ * The partitioned table in question was already opened and locked by caller
+ * and is given as argument; it is closed and unlocked here before return.
  */
 static List *
-get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
-								 bool rel_is_index, MemoryContext permcxt)
+get_tables_to_repack_partitioned(RepackStmt *stmt, Relation rel,
+								 MemoryContext permcxt)
 {
+	Oid			relid;
+	bool		rel_is_index;
 	List	   *inhoids;
 	List	   *rtcs = NIL;
 
+	Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
+	Assert(CheckRelationLockedByMe(rel, AccessExclusiveLock, false));
+
+	/*
+	 * We find the list of tables by looking for inheritors.  If USING INDEX
+	 * was given, look for inheritors of that index, whose name we resolve now.
+	 *
+	 * Otherwise we look for inheritors of the table itself.
+	 */
+	if (stmt->usingindex)
+	{
+		/*
+		 * If no index name was specified when repacking a partitioned
+		 * table, punt for now.  Maybe we can improve this later.
+		 */
+		if (!stmt->indexname)
+		{
+			if (stmt->command == REPACK_COMMAND_CLUSTER)
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						errmsg("there is no previously clustered index for table \"%s\"",
+							   RelationGetRelationName(rel)));
+			else
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						/*- translator: first %s is name of a SQL command, eg. REPACK */
+						errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
+							   RepackCommandAsString(stmt->command),
+							   RelationGetRelationName(rel)));
+		}
+
+		relid = determine_clustered_index(rel, stmt->usingindex,
+										  stmt->indexname);
+		if (!OidIsValid(relid))
+			elog(ERROR, "unable to determine index to cluster on");
+		check_index_is_clusterable(rel, relid, AccessExclusiveLock);
+
+		rel_is_index = true;
+	}
+	else
+	{
+		relid = RelationGetRelid(rel);
+		rel_is_index = false;
+	}
+
 	/*
 	 * Do not lock the children until they're processed.  Note that we do hold
 	 * a lock on the parent partitioned table.
@@ -2286,7 +2283,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 			if (get_rel_relkind(child_oid) != RELKIND_INDEX)
 				continue;
 
-			table_oid = IndexGetRelation(child_oid, false);
+			table_oid = IndexGetRelation(child_oid, true);
+			if (!OidIsValid(table_oid))
+				continue;
 			index_oid = child_oid;
 		}
 		else
@@ -2304,7 +2303,8 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		 * leaf partition despite having them on the partitioned table.  Skip
 		 * if so.
 		 */
-		if (!repack_is_permitted_for_relation(cmd, table_oid, GetUserId()))
+		if (!repack_is_permitted_for_relation(stmt->command, table_oid,
+											  GetUserId()))
 			continue;
 
 		/* Use a permanent memory context for the result list */
@@ -2316,6 +2316,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		MemoryContextSwitchTo(oldcxt);
 	}
 
+	/* close parent relation, releasing lock on it */
+	table_close(rel, AccessExclusiveLock);
+
 	return rtcs;
 }
 
-- 
2.47.3


--f4uihmgjmvhgvze3--





^ permalink  raw  reply  [nested|flat] 50+ messages in thread

* [PATCH] change get_tables_to_repack_partitioned
@ 2026-07-09 14:55  Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 50+ messages in thread

From: Álvaro Herrera @ 2026-07-09 14:55 UTC (permalink / raw)

---
 src/backend/commands/repack.c | 127 +++++++++++++++++-----------------
 1 file changed, 65 insertions(+), 62 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index 02883fe34a4..b3589ceff51 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -169,8 +169,8 @@ static void copy_table_data(Relation NewHeap, Relation OldHeap, Relation OldInde
 							MultiXactId *pCutoffMulti);
 static List *get_tables_to_repack(RepackCommand cmd, bool usingindex,
 								  MemoryContext permcxt);
-static List *get_tables_to_repack_partitioned(RepackCommand cmd,
-											  Oid relid, bool rel_is_index,
+static List *get_tables_to_repack_partitioned(RepackStmt *stmt,
+											  Relation rel,
 											  MemoryContext permcxt);
 static bool repack_is_permitted_for_relation(RepackCommand cmd,
 											 Oid relid, Oid userid);
@@ -387,58 +387,8 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	}
 	else
 	{
-		Oid			relid;
-		bool		rel_is_index;
-
-		Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
-
-		/*
-		 * If USING INDEX was specified, resolve the index name now and pass
-		 * it down.
-		 */
-		if (stmt->usingindex)
-		{
-			/*
-			 * If no index name was specified when repacking a partitioned
-			 * table, punt for now.  Maybe we can improve this later.
-			 */
-			if (!stmt->indexname)
-			{
-				if (stmt->command == REPACK_COMMAND_CLUSTER)
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-							errmsg("there is no previously clustered index for table \"%s\"",
-								   RelationGetRelationName(rel)));
-				else
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-					/*- translator: first %s is name of a SQL command, eg. REPACK */
-							errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
-								   RepackCommandAsString(stmt->command),
-								   RelationGetRelationName(rel)));
-			}
-
-			relid = determine_clustered_index(rel, stmt->usingindex,
-											  stmt->indexname);
-			if (!OidIsValid(relid))
-				elog(ERROR, "unable to determine index to cluster on");
-			check_index_is_clusterable(rel, relid, AccessExclusiveLock);
-
-			rel_is_index = true;
-		}
-		else
-		{
-			relid = RelationGetRelid(rel);
-			rel_is_index = false;
-		}
-
-		rtcs = get_tables_to_repack_partitioned(stmt->command,
-												relid, rel_is_index,
-												repack_context);
-
-		/* close parent relation, releasing lock on it */
-		table_close(rel, AccessExclusiveLock);
-		rel = NULL;
+		rtcs = get_tables_to_repack_partitioned(stmt, rel, repack_context);
+		rel = NULL;			/* clobber no longer valid pointer */
 	}
 
 	/* Commit to get out of starting transaction */
@@ -2255,19 +2205,66 @@ get_tables_to_repack(RepackCommand cmd, bool usingindex, MemoryContext permcxt)
 }
 
 /*
- * Given a partitioned table or its index, return a list of RelToCluster for
- * all the leaf child tables/indexes.
+ * Resolve a partitioned table named as target of REPACK to the list of
+ * its partitions, and return it as a list of RelToCluster.
  *
- * 'rel_is_index' tells whether 'relid' is that of an index (true) or of the
- * owning relation.
+ * The partitioned table in question was already opened and locked by caller
+ * and is given as argument; it is closed and unlocked here before return.
  */
 static List *
-get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
-								 bool rel_is_index, MemoryContext permcxt)
+get_tables_to_repack_partitioned(RepackStmt *stmt, Relation rel,
+								 MemoryContext permcxt)
 {
+	Oid			relid;
+	bool		rel_is_index;
 	List	   *inhoids;
 	List	   *rtcs = NIL;
 
+	Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
+	Assert(CheckRelationLockedByMe(rel, AccessExclusiveLock, false));
+
+	/*
+	 * We find the list of tables by looking for inheritors.  If USING INDEX
+	 * was given, look for inheritors of that index, whose name we resolve now.
+	 *
+	 * Otherwise we look for inheritors of the table itself.
+	 */
+	if (stmt->usingindex)
+	{
+		/*
+		 * If no index name was specified when repacking a partitioned
+		 * table, punt for now.  Maybe we can improve this later.
+		 */
+		if (!stmt->indexname)
+		{
+			if (stmt->command == REPACK_COMMAND_CLUSTER)
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						errmsg("there is no previously clustered index for table \"%s\"",
+							   RelationGetRelationName(rel)));
+			else
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						/*- translator: first %s is name of a SQL command, eg. REPACK */
+						errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
+							   RepackCommandAsString(stmt->command),
+							   RelationGetRelationName(rel)));
+		}
+
+		relid = determine_clustered_index(rel, stmt->usingindex,
+										  stmt->indexname);
+		if (!OidIsValid(relid))
+			elog(ERROR, "unable to determine index to cluster on");
+		check_index_is_clusterable(rel, relid, AccessExclusiveLock);
+
+		rel_is_index = true;
+	}
+	else
+	{
+		relid = RelationGetRelid(rel);
+		rel_is_index = false;
+	}
+
 	/*
 	 * Do not lock the children until they're processed.  Note that we do hold
 	 * a lock on the parent partitioned table.
@@ -2286,7 +2283,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 			if (get_rel_relkind(child_oid) != RELKIND_INDEX)
 				continue;
 
-			table_oid = IndexGetRelation(child_oid, false);
+			table_oid = IndexGetRelation(child_oid, true);
+			if (!OidIsValid(table_oid))
+				continue;
 			index_oid = child_oid;
 		}
 		else
@@ -2304,7 +2303,8 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		 * leaf partition despite having them on the partitioned table.  Skip
 		 * if so.
 		 */
-		if (!repack_is_permitted_for_relation(cmd, table_oid, GetUserId()))
+		if (!repack_is_permitted_for_relation(stmt->command, table_oid,
+											  GetUserId()))
 			continue;
 
 		/* Use a permanent memory context for the result list */
@@ -2316,6 +2316,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		MemoryContextSwitchTo(oldcxt);
 	}
 
+	/* close parent relation, releasing lock on it */
+	table_close(rel, AccessExclusiveLock);
+
 	return rtcs;
 }
 
-- 
2.47.3


--f4uihmgjmvhgvze3--





^ permalink  raw  reply  [nested|flat] 50+ messages in thread

* [PATCH] change get_tables_to_repack_partitioned
@ 2026-07-09 14:55  Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 50+ messages in thread

From: Álvaro Herrera @ 2026-07-09 14:55 UTC (permalink / raw)

---
 src/backend/commands/repack.c | 127 +++++++++++++++++-----------------
 1 file changed, 65 insertions(+), 62 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index 02883fe34a4..b3589ceff51 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -169,8 +169,8 @@ static void copy_table_data(Relation NewHeap, Relation OldHeap, Relation OldInde
 							MultiXactId *pCutoffMulti);
 static List *get_tables_to_repack(RepackCommand cmd, bool usingindex,
 								  MemoryContext permcxt);
-static List *get_tables_to_repack_partitioned(RepackCommand cmd,
-											  Oid relid, bool rel_is_index,
+static List *get_tables_to_repack_partitioned(RepackStmt *stmt,
+											  Relation rel,
 											  MemoryContext permcxt);
 static bool repack_is_permitted_for_relation(RepackCommand cmd,
 											 Oid relid, Oid userid);
@@ -387,58 +387,8 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	}
 	else
 	{
-		Oid			relid;
-		bool		rel_is_index;
-
-		Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
-
-		/*
-		 * If USING INDEX was specified, resolve the index name now and pass
-		 * it down.
-		 */
-		if (stmt->usingindex)
-		{
-			/*
-			 * If no index name was specified when repacking a partitioned
-			 * table, punt for now.  Maybe we can improve this later.
-			 */
-			if (!stmt->indexname)
-			{
-				if (stmt->command == REPACK_COMMAND_CLUSTER)
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-							errmsg("there is no previously clustered index for table \"%s\"",
-								   RelationGetRelationName(rel)));
-				else
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-					/*- translator: first %s is name of a SQL command, eg. REPACK */
-							errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
-								   RepackCommandAsString(stmt->command),
-								   RelationGetRelationName(rel)));
-			}
-
-			relid = determine_clustered_index(rel, stmt->usingindex,
-											  stmt->indexname);
-			if (!OidIsValid(relid))
-				elog(ERROR, "unable to determine index to cluster on");
-			check_index_is_clusterable(rel, relid, AccessExclusiveLock);
-
-			rel_is_index = true;
-		}
-		else
-		{
-			relid = RelationGetRelid(rel);
-			rel_is_index = false;
-		}
-
-		rtcs = get_tables_to_repack_partitioned(stmt->command,
-												relid, rel_is_index,
-												repack_context);
-
-		/* close parent relation, releasing lock on it */
-		table_close(rel, AccessExclusiveLock);
-		rel = NULL;
+		rtcs = get_tables_to_repack_partitioned(stmt, rel, repack_context);
+		rel = NULL;			/* clobber no longer valid pointer */
 	}
 
 	/* Commit to get out of starting transaction */
@@ -2255,19 +2205,66 @@ get_tables_to_repack(RepackCommand cmd, bool usingindex, MemoryContext permcxt)
 }
 
 /*
- * Given a partitioned table or its index, return a list of RelToCluster for
- * all the leaf child tables/indexes.
+ * Resolve a partitioned table named as target of REPACK to the list of
+ * its partitions, and return it as a list of RelToCluster.
  *
- * 'rel_is_index' tells whether 'relid' is that of an index (true) or of the
- * owning relation.
+ * The partitioned table in question was already opened and locked by caller
+ * and is given as argument; it is closed and unlocked here before return.
  */
 static List *
-get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
-								 bool rel_is_index, MemoryContext permcxt)
+get_tables_to_repack_partitioned(RepackStmt *stmt, Relation rel,
+								 MemoryContext permcxt)
 {
+	Oid			relid;
+	bool		rel_is_index;
 	List	   *inhoids;
 	List	   *rtcs = NIL;
 
+	Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
+	Assert(CheckRelationLockedByMe(rel, AccessExclusiveLock, false));
+
+	/*
+	 * We find the list of tables by looking for inheritors.  If USING INDEX
+	 * was given, look for inheritors of that index, whose name we resolve now.
+	 *
+	 * Otherwise we look for inheritors of the table itself.
+	 */
+	if (stmt->usingindex)
+	{
+		/*
+		 * If no index name was specified when repacking a partitioned
+		 * table, punt for now.  Maybe we can improve this later.
+		 */
+		if (!stmt->indexname)
+		{
+			if (stmt->command == REPACK_COMMAND_CLUSTER)
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						errmsg("there is no previously clustered index for table \"%s\"",
+							   RelationGetRelationName(rel)));
+			else
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						/*- translator: first %s is name of a SQL command, eg. REPACK */
+						errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
+							   RepackCommandAsString(stmt->command),
+							   RelationGetRelationName(rel)));
+		}
+
+		relid = determine_clustered_index(rel, stmt->usingindex,
+										  stmt->indexname);
+		if (!OidIsValid(relid))
+			elog(ERROR, "unable to determine index to cluster on");
+		check_index_is_clusterable(rel, relid, AccessExclusiveLock);
+
+		rel_is_index = true;
+	}
+	else
+	{
+		relid = RelationGetRelid(rel);
+		rel_is_index = false;
+	}
+
 	/*
 	 * Do not lock the children until they're processed.  Note that we do hold
 	 * a lock on the parent partitioned table.
@@ -2286,7 +2283,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 			if (get_rel_relkind(child_oid) != RELKIND_INDEX)
 				continue;
 
-			table_oid = IndexGetRelation(child_oid, false);
+			table_oid = IndexGetRelation(child_oid, true);
+			if (!OidIsValid(table_oid))
+				continue;
 			index_oid = child_oid;
 		}
 		else
@@ -2304,7 +2303,8 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		 * leaf partition despite having them on the partitioned table.  Skip
 		 * if so.
 		 */
-		if (!repack_is_permitted_for_relation(cmd, table_oid, GetUserId()))
+		if (!repack_is_permitted_for_relation(stmt->command, table_oid,
+											  GetUserId()))
 			continue;
 
 		/* Use a permanent memory context for the result list */
@@ -2316,6 +2316,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		MemoryContextSwitchTo(oldcxt);
 	}
 
+	/* close parent relation, releasing lock on it */
+	table_close(rel, AccessExclusiveLock);
+
 	return rtcs;
 }
 
-- 
2.47.3


--f4uihmgjmvhgvze3--





^ permalink  raw  reply  [nested|flat] 50+ messages in thread

* [PATCH] change get_tables_to_repack_partitioned
@ 2026-07-09 14:55  Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 50+ messages in thread

From: Álvaro Herrera @ 2026-07-09 14:55 UTC (permalink / raw)

---
 src/backend/commands/repack.c | 127 +++++++++++++++++-----------------
 1 file changed, 65 insertions(+), 62 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index 02883fe34a4..b3589ceff51 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -169,8 +169,8 @@ static void copy_table_data(Relation NewHeap, Relation OldHeap, Relation OldInde
 							MultiXactId *pCutoffMulti);
 static List *get_tables_to_repack(RepackCommand cmd, bool usingindex,
 								  MemoryContext permcxt);
-static List *get_tables_to_repack_partitioned(RepackCommand cmd,
-											  Oid relid, bool rel_is_index,
+static List *get_tables_to_repack_partitioned(RepackStmt *stmt,
+											  Relation rel,
 											  MemoryContext permcxt);
 static bool repack_is_permitted_for_relation(RepackCommand cmd,
 											 Oid relid, Oid userid);
@@ -387,58 +387,8 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	}
 	else
 	{
-		Oid			relid;
-		bool		rel_is_index;
-
-		Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
-
-		/*
-		 * If USING INDEX was specified, resolve the index name now and pass
-		 * it down.
-		 */
-		if (stmt->usingindex)
-		{
-			/*
-			 * If no index name was specified when repacking a partitioned
-			 * table, punt for now.  Maybe we can improve this later.
-			 */
-			if (!stmt->indexname)
-			{
-				if (stmt->command == REPACK_COMMAND_CLUSTER)
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-							errmsg("there is no previously clustered index for table \"%s\"",
-								   RelationGetRelationName(rel)));
-				else
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-					/*- translator: first %s is name of a SQL command, eg. REPACK */
-							errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
-								   RepackCommandAsString(stmt->command),
-								   RelationGetRelationName(rel)));
-			}
-
-			relid = determine_clustered_index(rel, stmt->usingindex,
-											  stmt->indexname);
-			if (!OidIsValid(relid))
-				elog(ERROR, "unable to determine index to cluster on");
-			check_index_is_clusterable(rel, relid, AccessExclusiveLock);
-
-			rel_is_index = true;
-		}
-		else
-		{
-			relid = RelationGetRelid(rel);
-			rel_is_index = false;
-		}
-
-		rtcs = get_tables_to_repack_partitioned(stmt->command,
-												relid, rel_is_index,
-												repack_context);
-
-		/* close parent relation, releasing lock on it */
-		table_close(rel, AccessExclusiveLock);
-		rel = NULL;
+		rtcs = get_tables_to_repack_partitioned(stmt, rel, repack_context);
+		rel = NULL;			/* clobber no longer valid pointer */
 	}
 
 	/* Commit to get out of starting transaction */
@@ -2255,19 +2205,66 @@ get_tables_to_repack(RepackCommand cmd, bool usingindex, MemoryContext permcxt)
 }
 
 /*
- * Given a partitioned table or its index, return a list of RelToCluster for
- * all the leaf child tables/indexes.
+ * Resolve a partitioned table named as target of REPACK to the list of
+ * its partitions, and return it as a list of RelToCluster.
  *
- * 'rel_is_index' tells whether 'relid' is that of an index (true) or of the
- * owning relation.
+ * The partitioned table in question was already opened and locked by caller
+ * and is given as argument; it is closed and unlocked here before return.
  */
 static List *
-get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
-								 bool rel_is_index, MemoryContext permcxt)
+get_tables_to_repack_partitioned(RepackStmt *stmt, Relation rel,
+								 MemoryContext permcxt)
 {
+	Oid			relid;
+	bool		rel_is_index;
 	List	   *inhoids;
 	List	   *rtcs = NIL;
 
+	Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
+	Assert(CheckRelationLockedByMe(rel, AccessExclusiveLock, false));
+
+	/*
+	 * We find the list of tables by looking for inheritors.  If USING INDEX
+	 * was given, look for inheritors of that index, whose name we resolve now.
+	 *
+	 * Otherwise we look for inheritors of the table itself.
+	 */
+	if (stmt->usingindex)
+	{
+		/*
+		 * If no index name was specified when repacking a partitioned
+		 * table, punt for now.  Maybe we can improve this later.
+		 */
+		if (!stmt->indexname)
+		{
+			if (stmt->command == REPACK_COMMAND_CLUSTER)
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						errmsg("there is no previously clustered index for table \"%s\"",
+							   RelationGetRelationName(rel)));
+			else
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						/*- translator: first %s is name of a SQL command, eg. REPACK */
+						errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
+							   RepackCommandAsString(stmt->command),
+							   RelationGetRelationName(rel)));
+		}
+
+		relid = determine_clustered_index(rel, stmt->usingindex,
+										  stmt->indexname);
+		if (!OidIsValid(relid))
+			elog(ERROR, "unable to determine index to cluster on");
+		check_index_is_clusterable(rel, relid, AccessExclusiveLock);
+
+		rel_is_index = true;
+	}
+	else
+	{
+		relid = RelationGetRelid(rel);
+		rel_is_index = false;
+	}
+
 	/*
 	 * Do not lock the children until they're processed.  Note that we do hold
 	 * a lock on the parent partitioned table.
@@ -2286,7 +2283,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 			if (get_rel_relkind(child_oid) != RELKIND_INDEX)
 				continue;
 
-			table_oid = IndexGetRelation(child_oid, false);
+			table_oid = IndexGetRelation(child_oid, true);
+			if (!OidIsValid(table_oid))
+				continue;
 			index_oid = child_oid;
 		}
 		else
@@ -2304,7 +2303,8 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		 * leaf partition despite having them on the partitioned table.  Skip
 		 * if so.
 		 */
-		if (!repack_is_permitted_for_relation(cmd, table_oid, GetUserId()))
+		if (!repack_is_permitted_for_relation(stmt->command, table_oid,
+											  GetUserId()))
 			continue;
 
 		/* Use a permanent memory context for the result list */
@@ -2316,6 +2316,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		MemoryContextSwitchTo(oldcxt);
 	}
 
+	/* close parent relation, releasing lock on it */
+	table_close(rel, AccessExclusiveLock);
+
 	return rtcs;
 }
 
-- 
2.47.3


--f4uihmgjmvhgvze3--





^ permalink  raw  reply  [nested|flat] 50+ messages in thread

* [PATCH] change get_tables_to_repack_partitioned
@ 2026-07-09 14:55  Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 50+ messages in thread

From: Álvaro Herrera @ 2026-07-09 14:55 UTC (permalink / raw)

---
 src/backend/commands/repack.c | 127 +++++++++++++++++-----------------
 1 file changed, 65 insertions(+), 62 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index 02883fe34a4..b3589ceff51 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -169,8 +169,8 @@ static void copy_table_data(Relation NewHeap, Relation OldHeap, Relation OldInde
 							MultiXactId *pCutoffMulti);
 static List *get_tables_to_repack(RepackCommand cmd, bool usingindex,
 								  MemoryContext permcxt);
-static List *get_tables_to_repack_partitioned(RepackCommand cmd,
-											  Oid relid, bool rel_is_index,
+static List *get_tables_to_repack_partitioned(RepackStmt *stmt,
+											  Relation rel,
 											  MemoryContext permcxt);
 static bool repack_is_permitted_for_relation(RepackCommand cmd,
 											 Oid relid, Oid userid);
@@ -387,58 +387,8 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	}
 	else
 	{
-		Oid			relid;
-		bool		rel_is_index;
-
-		Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
-
-		/*
-		 * If USING INDEX was specified, resolve the index name now and pass
-		 * it down.
-		 */
-		if (stmt->usingindex)
-		{
-			/*
-			 * If no index name was specified when repacking a partitioned
-			 * table, punt for now.  Maybe we can improve this later.
-			 */
-			if (!stmt->indexname)
-			{
-				if (stmt->command == REPACK_COMMAND_CLUSTER)
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-							errmsg("there is no previously clustered index for table \"%s\"",
-								   RelationGetRelationName(rel)));
-				else
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-					/*- translator: first %s is name of a SQL command, eg. REPACK */
-							errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
-								   RepackCommandAsString(stmt->command),
-								   RelationGetRelationName(rel)));
-			}
-
-			relid = determine_clustered_index(rel, stmt->usingindex,
-											  stmt->indexname);
-			if (!OidIsValid(relid))
-				elog(ERROR, "unable to determine index to cluster on");
-			check_index_is_clusterable(rel, relid, AccessExclusiveLock);
-
-			rel_is_index = true;
-		}
-		else
-		{
-			relid = RelationGetRelid(rel);
-			rel_is_index = false;
-		}
-
-		rtcs = get_tables_to_repack_partitioned(stmt->command,
-												relid, rel_is_index,
-												repack_context);
-
-		/* close parent relation, releasing lock on it */
-		table_close(rel, AccessExclusiveLock);
-		rel = NULL;
+		rtcs = get_tables_to_repack_partitioned(stmt, rel, repack_context);
+		rel = NULL;			/* clobber no longer valid pointer */
 	}
 
 	/* Commit to get out of starting transaction */
@@ -2255,19 +2205,66 @@ get_tables_to_repack(RepackCommand cmd, bool usingindex, MemoryContext permcxt)
 }
 
 /*
- * Given a partitioned table or its index, return a list of RelToCluster for
- * all the leaf child tables/indexes.
+ * Resolve a partitioned table named as target of REPACK to the list of
+ * its partitions, and return it as a list of RelToCluster.
  *
- * 'rel_is_index' tells whether 'relid' is that of an index (true) or of the
- * owning relation.
+ * The partitioned table in question was already opened and locked by caller
+ * and is given as argument; it is closed and unlocked here before return.
  */
 static List *
-get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
-								 bool rel_is_index, MemoryContext permcxt)
+get_tables_to_repack_partitioned(RepackStmt *stmt, Relation rel,
+								 MemoryContext permcxt)
 {
+	Oid			relid;
+	bool		rel_is_index;
 	List	   *inhoids;
 	List	   *rtcs = NIL;
 
+	Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
+	Assert(CheckRelationLockedByMe(rel, AccessExclusiveLock, false));
+
+	/*
+	 * We find the list of tables by looking for inheritors.  If USING INDEX
+	 * was given, look for inheritors of that index, whose name we resolve now.
+	 *
+	 * Otherwise we look for inheritors of the table itself.
+	 */
+	if (stmt->usingindex)
+	{
+		/*
+		 * If no index name was specified when repacking a partitioned
+		 * table, punt for now.  Maybe we can improve this later.
+		 */
+		if (!stmt->indexname)
+		{
+			if (stmt->command == REPACK_COMMAND_CLUSTER)
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						errmsg("there is no previously clustered index for table \"%s\"",
+							   RelationGetRelationName(rel)));
+			else
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						/*- translator: first %s is name of a SQL command, eg. REPACK */
+						errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
+							   RepackCommandAsString(stmt->command),
+							   RelationGetRelationName(rel)));
+		}
+
+		relid = determine_clustered_index(rel, stmt->usingindex,
+										  stmt->indexname);
+		if (!OidIsValid(relid))
+			elog(ERROR, "unable to determine index to cluster on");
+		check_index_is_clusterable(rel, relid, AccessExclusiveLock);
+
+		rel_is_index = true;
+	}
+	else
+	{
+		relid = RelationGetRelid(rel);
+		rel_is_index = false;
+	}
+
 	/*
 	 * Do not lock the children until they're processed.  Note that we do hold
 	 * a lock on the parent partitioned table.
@@ -2286,7 +2283,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 			if (get_rel_relkind(child_oid) != RELKIND_INDEX)
 				continue;
 
-			table_oid = IndexGetRelation(child_oid, false);
+			table_oid = IndexGetRelation(child_oid, true);
+			if (!OidIsValid(table_oid))
+				continue;
 			index_oid = child_oid;
 		}
 		else
@@ -2304,7 +2303,8 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		 * leaf partition despite having them on the partitioned table.  Skip
 		 * if so.
 		 */
-		if (!repack_is_permitted_for_relation(cmd, table_oid, GetUserId()))
+		if (!repack_is_permitted_for_relation(stmt->command, table_oid,
+											  GetUserId()))
 			continue;
 
 		/* Use a permanent memory context for the result list */
@@ -2316,6 +2316,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		MemoryContextSwitchTo(oldcxt);
 	}
 
+	/* close parent relation, releasing lock on it */
+	table_close(rel, AccessExclusiveLock);
+
 	return rtcs;
 }
 
-- 
2.47.3


--f4uihmgjmvhgvze3--





^ permalink  raw  reply  [nested|flat] 50+ messages in thread

* [PATCH] change get_tables_to_repack_partitioned
@ 2026-07-09 14:55  Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 50+ messages in thread

From: Álvaro Herrera @ 2026-07-09 14:55 UTC (permalink / raw)

---
 src/backend/commands/repack.c | 127 +++++++++++++++++-----------------
 1 file changed, 65 insertions(+), 62 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index 02883fe34a4..b3589ceff51 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -169,8 +169,8 @@ static void copy_table_data(Relation NewHeap, Relation OldHeap, Relation OldInde
 							MultiXactId *pCutoffMulti);
 static List *get_tables_to_repack(RepackCommand cmd, bool usingindex,
 								  MemoryContext permcxt);
-static List *get_tables_to_repack_partitioned(RepackCommand cmd,
-											  Oid relid, bool rel_is_index,
+static List *get_tables_to_repack_partitioned(RepackStmt *stmt,
+											  Relation rel,
 											  MemoryContext permcxt);
 static bool repack_is_permitted_for_relation(RepackCommand cmd,
 											 Oid relid, Oid userid);
@@ -387,58 +387,8 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	}
 	else
 	{
-		Oid			relid;
-		bool		rel_is_index;
-
-		Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
-
-		/*
-		 * If USING INDEX was specified, resolve the index name now and pass
-		 * it down.
-		 */
-		if (stmt->usingindex)
-		{
-			/*
-			 * If no index name was specified when repacking a partitioned
-			 * table, punt for now.  Maybe we can improve this later.
-			 */
-			if (!stmt->indexname)
-			{
-				if (stmt->command == REPACK_COMMAND_CLUSTER)
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-							errmsg("there is no previously clustered index for table \"%s\"",
-								   RelationGetRelationName(rel)));
-				else
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-					/*- translator: first %s is name of a SQL command, eg. REPACK */
-							errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
-								   RepackCommandAsString(stmt->command),
-								   RelationGetRelationName(rel)));
-			}
-
-			relid = determine_clustered_index(rel, stmt->usingindex,
-											  stmt->indexname);
-			if (!OidIsValid(relid))
-				elog(ERROR, "unable to determine index to cluster on");
-			check_index_is_clusterable(rel, relid, AccessExclusiveLock);
-
-			rel_is_index = true;
-		}
-		else
-		{
-			relid = RelationGetRelid(rel);
-			rel_is_index = false;
-		}
-
-		rtcs = get_tables_to_repack_partitioned(stmt->command,
-												relid, rel_is_index,
-												repack_context);
-
-		/* close parent relation, releasing lock on it */
-		table_close(rel, AccessExclusiveLock);
-		rel = NULL;
+		rtcs = get_tables_to_repack_partitioned(stmt, rel, repack_context);
+		rel = NULL;			/* clobber no longer valid pointer */
 	}
 
 	/* Commit to get out of starting transaction */
@@ -2255,19 +2205,66 @@ get_tables_to_repack(RepackCommand cmd, bool usingindex, MemoryContext permcxt)
 }
 
 /*
- * Given a partitioned table or its index, return a list of RelToCluster for
- * all the leaf child tables/indexes.
+ * Resolve a partitioned table named as target of REPACK to the list of
+ * its partitions, and return it as a list of RelToCluster.
  *
- * 'rel_is_index' tells whether 'relid' is that of an index (true) or of the
- * owning relation.
+ * The partitioned table in question was already opened and locked by caller
+ * and is given as argument; it is closed and unlocked here before return.
  */
 static List *
-get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
-								 bool rel_is_index, MemoryContext permcxt)
+get_tables_to_repack_partitioned(RepackStmt *stmt, Relation rel,
+								 MemoryContext permcxt)
 {
+	Oid			relid;
+	bool		rel_is_index;
 	List	   *inhoids;
 	List	   *rtcs = NIL;
 
+	Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
+	Assert(CheckRelationLockedByMe(rel, AccessExclusiveLock, false));
+
+	/*
+	 * We find the list of tables by looking for inheritors.  If USING INDEX
+	 * was given, look for inheritors of that index, whose name we resolve now.
+	 *
+	 * Otherwise we look for inheritors of the table itself.
+	 */
+	if (stmt->usingindex)
+	{
+		/*
+		 * If no index name was specified when repacking a partitioned
+		 * table, punt for now.  Maybe we can improve this later.
+		 */
+		if (!stmt->indexname)
+		{
+			if (stmt->command == REPACK_COMMAND_CLUSTER)
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						errmsg("there is no previously clustered index for table \"%s\"",
+							   RelationGetRelationName(rel)));
+			else
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						/*- translator: first %s is name of a SQL command, eg. REPACK */
+						errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
+							   RepackCommandAsString(stmt->command),
+							   RelationGetRelationName(rel)));
+		}
+
+		relid = determine_clustered_index(rel, stmt->usingindex,
+										  stmt->indexname);
+		if (!OidIsValid(relid))
+			elog(ERROR, "unable to determine index to cluster on");
+		check_index_is_clusterable(rel, relid, AccessExclusiveLock);
+
+		rel_is_index = true;
+	}
+	else
+	{
+		relid = RelationGetRelid(rel);
+		rel_is_index = false;
+	}
+
 	/*
 	 * Do not lock the children until they're processed.  Note that we do hold
 	 * a lock on the parent partitioned table.
@@ -2286,7 +2283,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 			if (get_rel_relkind(child_oid) != RELKIND_INDEX)
 				continue;
 
-			table_oid = IndexGetRelation(child_oid, false);
+			table_oid = IndexGetRelation(child_oid, true);
+			if (!OidIsValid(table_oid))
+				continue;
 			index_oid = child_oid;
 		}
 		else
@@ -2304,7 +2303,8 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		 * leaf partition despite having them on the partitioned table.  Skip
 		 * if so.
 		 */
-		if (!repack_is_permitted_for_relation(cmd, table_oid, GetUserId()))
+		if (!repack_is_permitted_for_relation(stmt->command, table_oid,
+											  GetUserId()))
 			continue;
 
 		/* Use a permanent memory context for the result list */
@@ -2316,6 +2316,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		MemoryContextSwitchTo(oldcxt);
 	}
 
+	/* close parent relation, releasing lock on it */
+	table_close(rel, AccessExclusiveLock);
+
 	return rtcs;
 }
 
-- 
2.47.3


--f4uihmgjmvhgvze3--





^ permalink  raw  reply  [nested|flat] 50+ messages in thread

* [PATCH] change get_tables_to_repack_partitioned
@ 2026-07-09 14:55  Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 50+ messages in thread

From: Álvaro Herrera @ 2026-07-09 14:55 UTC (permalink / raw)

---
 src/backend/commands/repack.c | 127 +++++++++++++++++-----------------
 1 file changed, 65 insertions(+), 62 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index 02883fe34a4..b3589ceff51 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -169,8 +169,8 @@ static void copy_table_data(Relation NewHeap, Relation OldHeap, Relation OldInde
 							MultiXactId *pCutoffMulti);
 static List *get_tables_to_repack(RepackCommand cmd, bool usingindex,
 								  MemoryContext permcxt);
-static List *get_tables_to_repack_partitioned(RepackCommand cmd,
-											  Oid relid, bool rel_is_index,
+static List *get_tables_to_repack_partitioned(RepackStmt *stmt,
+											  Relation rel,
 											  MemoryContext permcxt);
 static bool repack_is_permitted_for_relation(RepackCommand cmd,
 											 Oid relid, Oid userid);
@@ -387,58 +387,8 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	}
 	else
 	{
-		Oid			relid;
-		bool		rel_is_index;
-
-		Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
-
-		/*
-		 * If USING INDEX was specified, resolve the index name now and pass
-		 * it down.
-		 */
-		if (stmt->usingindex)
-		{
-			/*
-			 * If no index name was specified when repacking a partitioned
-			 * table, punt for now.  Maybe we can improve this later.
-			 */
-			if (!stmt->indexname)
-			{
-				if (stmt->command == REPACK_COMMAND_CLUSTER)
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-							errmsg("there is no previously clustered index for table \"%s\"",
-								   RelationGetRelationName(rel)));
-				else
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-					/*- translator: first %s is name of a SQL command, eg. REPACK */
-							errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
-								   RepackCommandAsString(stmt->command),
-								   RelationGetRelationName(rel)));
-			}
-
-			relid = determine_clustered_index(rel, stmt->usingindex,
-											  stmt->indexname);
-			if (!OidIsValid(relid))
-				elog(ERROR, "unable to determine index to cluster on");
-			check_index_is_clusterable(rel, relid, AccessExclusiveLock);
-
-			rel_is_index = true;
-		}
-		else
-		{
-			relid = RelationGetRelid(rel);
-			rel_is_index = false;
-		}
-
-		rtcs = get_tables_to_repack_partitioned(stmt->command,
-												relid, rel_is_index,
-												repack_context);
-
-		/* close parent relation, releasing lock on it */
-		table_close(rel, AccessExclusiveLock);
-		rel = NULL;
+		rtcs = get_tables_to_repack_partitioned(stmt, rel, repack_context);
+		rel = NULL;			/* clobber no longer valid pointer */
 	}
 
 	/* Commit to get out of starting transaction */
@@ -2255,19 +2205,66 @@ get_tables_to_repack(RepackCommand cmd, bool usingindex, MemoryContext permcxt)
 }
 
 /*
- * Given a partitioned table or its index, return a list of RelToCluster for
- * all the leaf child tables/indexes.
+ * Resolve a partitioned table named as target of REPACK to the list of
+ * its partitions, and return it as a list of RelToCluster.
  *
- * 'rel_is_index' tells whether 'relid' is that of an index (true) or of the
- * owning relation.
+ * The partitioned table in question was already opened and locked by caller
+ * and is given as argument; it is closed and unlocked here before return.
  */
 static List *
-get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
-								 bool rel_is_index, MemoryContext permcxt)
+get_tables_to_repack_partitioned(RepackStmt *stmt, Relation rel,
+								 MemoryContext permcxt)
 {
+	Oid			relid;
+	bool		rel_is_index;
 	List	   *inhoids;
 	List	   *rtcs = NIL;
 
+	Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
+	Assert(CheckRelationLockedByMe(rel, AccessExclusiveLock, false));
+
+	/*
+	 * We find the list of tables by looking for inheritors.  If USING INDEX
+	 * was given, look for inheritors of that index, whose name we resolve now.
+	 *
+	 * Otherwise we look for inheritors of the table itself.
+	 */
+	if (stmt->usingindex)
+	{
+		/*
+		 * If no index name was specified when repacking a partitioned
+		 * table, punt for now.  Maybe we can improve this later.
+		 */
+		if (!stmt->indexname)
+		{
+			if (stmt->command == REPACK_COMMAND_CLUSTER)
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						errmsg("there is no previously clustered index for table \"%s\"",
+							   RelationGetRelationName(rel)));
+			else
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						/*- translator: first %s is name of a SQL command, eg. REPACK */
+						errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
+							   RepackCommandAsString(stmt->command),
+							   RelationGetRelationName(rel)));
+		}
+
+		relid = determine_clustered_index(rel, stmt->usingindex,
+										  stmt->indexname);
+		if (!OidIsValid(relid))
+			elog(ERROR, "unable to determine index to cluster on");
+		check_index_is_clusterable(rel, relid, AccessExclusiveLock);
+
+		rel_is_index = true;
+	}
+	else
+	{
+		relid = RelationGetRelid(rel);
+		rel_is_index = false;
+	}
+
 	/*
 	 * Do not lock the children until they're processed.  Note that we do hold
 	 * a lock on the parent partitioned table.
@@ -2286,7 +2283,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 			if (get_rel_relkind(child_oid) != RELKIND_INDEX)
 				continue;
 
-			table_oid = IndexGetRelation(child_oid, false);
+			table_oid = IndexGetRelation(child_oid, true);
+			if (!OidIsValid(table_oid))
+				continue;
 			index_oid = child_oid;
 		}
 		else
@@ -2304,7 +2303,8 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		 * leaf partition despite having them on the partitioned table.  Skip
 		 * if so.
 		 */
-		if (!repack_is_permitted_for_relation(cmd, table_oid, GetUserId()))
+		if (!repack_is_permitted_for_relation(stmt->command, table_oid,
+											  GetUserId()))
 			continue;
 
 		/* Use a permanent memory context for the result list */
@@ -2316,6 +2316,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		MemoryContextSwitchTo(oldcxt);
 	}
 
+	/* close parent relation, releasing lock on it */
+	table_close(rel, AccessExclusiveLock);
+
 	return rtcs;
 }
 
-- 
2.47.3


--f4uihmgjmvhgvze3--





^ permalink  raw  reply  [nested|flat] 50+ messages in thread

* [PATCH] change get_tables_to_repack_partitioned
@ 2026-07-09 14:55  Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 50+ messages in thread

From: Álvaro Herrera @ 2026-07-09 14:55 UTC (permalink / raw)

---
 src/backend/commands/repack.c | 127 +++++++++++++++++-----------------
 1 file changed, 65 insertions(+), 62 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index 02883fe34a4..b3589ceff51 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -169,8 +169,8 @@ static void copy_table_data(Relation NewHeap, Relation OldHeap, Relation OldInde
 							MultiXactId *pCutoffMulti);
 static List *get_tables_to_repack(RepackCommand cmd, bool usingindex,
 								  MemoryContext permcxt);
-static List *get_tables_to_repack_partitioned(RepackCommand cmd,
-											  Oid relid, bool rel_is_index,
+static List *get_tables_to_repack_partitioned(RepackStmt *stmt,
+											  Relation rel,
 											  MemoryContext permcxt);
 static bool repack_is_permitted_for_relation(RepackCommand cmd,
 											 Oid relid, Oid userid);
@@ -387,58 +387,8 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	}
 	else
 	{
-		Oid			relid;
-		bool		rel_is_index;
-
-		Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
-
-		/*
-		 * If USING INDEX was specified, resolve the index name now and pass
-		 * it down.
-		 */
-		if (stmt->usingindex)
-		{
-			/*
-			 * If no index name was specified when repacking a partitioned
-			 * table, punt for now.  Maybe we can improve this later.
-			 */
-			if (!stmt->indexname)
-			{
-				if (stmt->command == REPACK_COMMAND_CLUSTER)
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-							errmsg("there is no previously clustered index for table \"%s\"",
-								   RelationGetRelationName(rel)));
-				else
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-					/*- translator: first %s is name of a SQL command, eg. REPACK */
-							errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
-								   RepackCommandAsString(stmt->command),
-								   RelationGetRelationName(rel)));
-			}
-
-			relid = determine_clustered_index(rel, stmt->usingindex,
-											  stmt->indexname);
-			if (!OidIsValid(relid))
-				elog(ERROR, "unable to determine index to cluster on");
-			check_index_is_clusterable(rel, relid, AccessExclusiveLock);
-
-			rel_is_index = true;
-		}
-		else
-		{
-			relid = RelationGetRelid(rel);
-			rel_is_index = false;
-		}
-
-		rtcs = get_tables_to_repack_partitioned(stmt->command,
-												relid, rel_is_index,
-												repack_context);
-
-		/* close parent relation, releasing lock on it */
-		table_close(rel, AccessExclusiveLock);
-		rel = NULL;
+		rtcs = get_tables_to_repack_partitioned(stmt, rel, repack_context);
+		rel = NULL;			/* clobber no longer valid pointer */
 	}
 
 	/* Commit to get out of starting transaction */
@@ -2255,19 +2205,66 @@ get_tables_to_repack(RepackCommand cmd, bool usingindex, MemoryContext permcxt)
 }
 
 /*
- * Given a partitioned table or its index, return a list of RelToCluster for
- * all the leaf child tables/indexes.
+ * Resolve a partitioned table named as target of REPACK to the list of
+ * its partitions, and return it as a list of RelToCluster.
  *
- * 'rel_is_index' tells whether 'relid' is that of an index (true) or of the
- * owning relation.
+ * The partitioned table in question was already opened and locked by caller
+ * and is given as argument; it is closed and unlocked here before return.
  */
 static List *
-get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
-								 bool rel_is_index, MemoryContext permcxt)
+get_tables_to_repack_partitioned(RepackStmt *stmt, Relation rel,
+								 MemoryContext permcxt)
 {
+	Oid			relid;
+	bool		rel_is_index;
 	List	   *inhoids;
 	List	   *rtcs = NIL;
 
+	Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
+	Assert(CheckRelationLockedByMe(rel, AccessExclusiveLock, false));
+
+	/*
+	 * We find the list of tables by looking for inheritors.  If USING INDEX
+	 * was given, look for inheritors of that index, whose name we resolve now.
+	 *
+	 * Otherwise we look for inheritors of the table itself.
+	 */
+	if (stmt->usingindex)
+	{
+		/*
+		 * If no index name was specified when repacking a partitioned
+		 * table, punt for now.  Maybe we can improve this later.
+		 */
+		if (!stmt->indexname)
+		{
+			if (stmt->command == REPACK_COMMAND_CLUSTER)
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						errmsg("there is no previously clustered index for table \"%s\"",
+							   RelationGetRelationName(rel)));
+			else
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						/*- translator: first %s is name of a SQL command, eg. REPACK */
+						errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
+							   RepackCommandAsString(stmt->command),
+							   RelationGetRelationName(rel)));
+		}
+
+		relid = determine_clustered_index(rel, stmt->usingindex,
+										  stmt->indexname);
+		if (!OidIsValid(relid))
+			elog(ERROR, "unable to determine index to cluster on");
+		check_index_is_clusterable(rel, relid, AccessExclusiveLock);
+
+		rel_is_index = true;
+	}
+	else
+	{
+		relid = RelationGetRelid(rel);
+		rel_is_index = false;
+	}
+
 	/*
 	 * Do not lock the children until they're processed.  Note that we do hold
 	 * a lock on the parent partitioned table.
@@ -2286,7 +2283,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 			if (get_rel_relkind(child_oid) != RELKIND_INDEX)
 				continue;
 
-			table_oid = IndexGetRelation(child_oid, false);
+			table_oid = IndexGetRelation(child_oid, true);
+			if (!OidIsValid(table_oid))
+				continue;
 			index_oid = child_oid;
 		}
 		else
@@ -2304,7 +2303,8 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		 * leaf partition despite having them on the partitioned table.  Skip
 		 * if so.
 		 */
-		if (!repack_is_permitted_for_relation(cmd, table_oid, GetUserId()))
+		if (!repack_is_permitted_for_relation(stmt->command, table_oid,
+											  GetUserId()))
 			continue;
 
 		/* Use a permanent memory context for the result list */
@@ -2316,6 +2316,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		MemoryContextSwitchTo(oldcxt);
 	}
 
+	/* close parent relation, releasing lock on it */
+	table_close(rel, AccessExclusiveLock);
+
 	return rtcs;
 }
 
-- 
2.47.3


--f4uihmgjmvhgvze3--





^ permalink  raw  reply  [nested|flat] 50+ messages in thread

* [PATCH] change get_tables_to_repack_partitioned
@ 2026-07-09 14:55  Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 50+ messages in thread

From: Álvaro Herrera @ 2026-07-09 14:55 UTC (permalink / raw)

---
 src/backend/commands/repack.c | 127 +++++++++++++++++-----------------
 1 file changed, 65 insertions(+), 62 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index 02883fe34a4..b3589ceff51 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -169,8 +169,8 @@ static void copy_table_data(Relation NewHeap, Relation OldHeap, Relation OldInde
 							MultiXactId *pCutoffMulti);
 static List *get_tables_to_repack(RepackCommand cmd, bool usingindex,
 								  MemoryContext permcxt);
-static List *get_tables_to_repack_partitioned(RepackCommand cmd,
-											  Oid relid, bool rel_is_index,
+static List *get_tables_to_repack_partitioned(RepackStmt *stmt,
+											  Relation rel,
 											  MemoryContext permcxt);
 static bool repack_is_permitted_for_relation(RepackCommand cmd,
 											 Oid relid, Oid userid);
@@ -387,58 +387,8 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	}
 	else
 	{
-		Oid			relid;
-		bool		rel_is_index;
-
-		Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
-
-		/*
-		 * If USING INDEX was specified, resolve the index name now and pass
-		 * it down.
-		 */
-		if (stmt->usingindex)
-		{
-			/*
-			 * If no index name was specified when repacking a partitioned
-			 * table, punt for now.  Maybe we can improve this later.
-			 */
-			if (!stmt->indexname)
-			{
-				if (stmt->command == REPACK_COMMAND_CLUSTER)
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-							errmsg("there is no previously clustered index for table \"%s\"",
-								   RelationGetRelationName(rel)));
-				else
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-					/*- translator: first %s is name of a SQL command, eg. REPACK */
-							errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
-								   RepackCommandAsString(stmt->command),
-								   RelationGetRelationName(rel)));
-			}
-
-			relid = determine_clustered_index(rel, stmt->usingindex,
-											  stmt->indexname);
-			if (!OidIsValid(relid))
-				elog(ERROR, "unable to determine index to cluster on");
-			check_index_is_clusterable(rel, relid, AccessExclusiveLock);
-
-			rel_is_index = true;
-		}
-		else
-		{
-			relid = RelationGetRelid(rel);
-			rel_is_index = false;
-		}
-
-		rtcs = get_tables_to_repack_partitioned(stmt->command,
-												relid, rel_is_index,
-												repack_context);
-
-		/* close parent relation, releasing lock on it */
-		table_close(rel, AccessExclusiveLock);
-		rel = NULL;
+		rtcs = get_tables_to_repack_partitioned(stmt, rel, repack_context);
+		rel = NULL;			/* clobber no longer valid pointer */
 	}
 
 	/* Commit to get out of starting transaction */
@@ -2255,19 +2205,66 @@ get_tables_to_repack(RepackCommand cmd, bool usingindex, MemoryContext permcxt)
 }
 
 /*
- * Given a partitioned table or its index, return a list of RelToCluster for
- * all the leaf child tables/indexes.
+ * Resolve a partitioned table named as target of REPACK to the list of
+ * its partitions, and return it as a list of RelToCluster.
  *
- * 'rel_is_index' tells whether 'relid' is that of an index (true) or of the
- * owning relation.
+ * The partitioned table in question was already opened and locked by caller
+ * and is given as argument; it is closed and unlocked here before return.
  */
 static List *
-get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
-								 bool rel_is_index, MemoryContext permcxt)
+get_tables_to_repack_partitioned(RepackStmt *stmt, Relation rel,
+								 MemoryContext permcxt)
 {
+	Oid			relid;
+	bool		rel_is_index;
 	List	   *inhoids;
 	List	   *rtcs = NIL;
 
+	Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
+	Assert(CheckRelationLockedByMe(rel, AccessExclusiveLock, false));
+
+	/*
+	 * We find the list of tables by looking for inheritors.  If USING INDEX
+	 * was given, look for inheritors of that index, whose name we resolve now.
+	 *
+	 * Otherwise we look for inheritors of the table itself.
+	 */
+	if (stmt->usingindex)
+	{
+		/*
+		 * If no index name was specified when repacking a partitioned
+		 * table, punt for now.  Maybe we can improve this later.
+		 */
+		if (!stmt->indexname)
+		{
+			if (stmt->command == REPACK_COMMAND_CLUSTER)
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						errmsg("there is no previously clustered index for table \"%s\"",
+							   RelationGetRelationName(rel)));
+			else
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						/*- translator: first %s is name of a SQL command, eg. REPACK */
+						errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
+							   RepackCommandAsString(stmt->command),
+							   RelationGetRelationName(rel)));
+		}
+
+		relid = determine_clustered_index(rel, stmt->usingindex,
+										  stmt->indexname);
+		if (!OidIsValid(relid))
+			elog(ERROR, "unable to determine index to cluster on");
+		check_index_is_clusterable(rel, relid, AccessExclusiveLock);
+
+		rel_is_index = true;
+	}
+	else
+	{
+		relid = RelationGetRelid(rel);
+		rel_is_index = false;
+	}
+
 	/*
 	 * Do not lock the children until they're processed.  Note that we do hold
 	 * a lock on the parent partitioned table.
@@ -2286,7 +2283,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 			if (get_rel_relkind(child_oid) != RELKIND_INDEX)
 				continue;
 
-			table_oid = IndexGetRelation(child_oid, false);
+			table_oid = IndexGetRelation(child_oid, true);
+			if (!OidIsValid(table_oid))
+				continue;
 			index_oid = child_oid;
 		}
 		else
@@ -2304,7 +2303,8 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		 * leaf partition despite having them on the partitioned table.  Skip
 		 * if so.
 		 */
-		if (!repack_is_permitted_for_relation(cmd, table_oid, GetUserId()))
+		if (!repack_is_permitted_for_relation(stmt->command, table_oid,
+											  GetUserId()))
 			continue;
 
 		/* Use a permanent memory context for the result list */
@@ -2316,6 +2316,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		MemoryContextSwitchTo(oldcxt);
 	}
 
+	/* close parent relation, releasing lock on it */
+	table_close(rel, AccessExclusiveLock);
+
 	return rtcs;
 }
 
-- 
2.47.3


--f4uihmgjmvhgvze3--





^ permalink  raw  reply  [nested|flat] 50+ messages in thread

* [PATCH] change get_tables_to_repack_partitioned
@ 2026-07-09 14:55  Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 50+ messages in thread

From: Álvaro Herrera @ 2026-07-09 14:55 UTC (permalink / raw)

---
 src/backend/commands/repack.c | 127 +++++++++++++++++-----------------
 1 file changed, 65 insertions(+), 62 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index 02883fe34a4..b3589ceff51 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -169,8 +169,8 @@ static void copy_table_data(Relation NewHeap, Relation OldHeap, Relation OldInde
 							MultiXactId *pCutoffMulti);
 static List *get_tables_to_repack(RepackCommand cmd, bool usingindex,
 								  MemoryContext permcxt);
-static List *get_tables_to_repack_partitioned(RepackCommand cmd,
-											  Oid relid, bool rel_is_index,
+static List *get_tables_to_repack_partitioned(RepackStmt *stmt,
+											  Relation rel,
 											  MemoryContext permcxt);
 static bool repack_is_permitted_for_relation(RepackCommand cmd,
 											 Oid relid, Oid userid);
@@ -387,58 +387,8 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	}
 	else
 	{
-		Oid			relid;
-		bool		rel_is_index;
-
-		Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
-
-		/*
-		 * If USING INDEX was specified, resolve the index name now and pass
-		 * it down.
-		 */
-		if (stmt->usingindex)
-		{
-			/*
-			 * If no index name was specified when repacking a partitioned
-			 * table, punt for now.  Maybe we can improve this later.
-			 */
-			if (!stmt->indexname)
-			{
-				if (stmt->command == REPACK_COMMAND_CLUSTER)
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-							errmsg("there is no previously clustered index for table \"%s\"",
-								   RelationGetRelationName(rel)));
-				else
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-					/*- translator: first %s is name of a SQL command, eg. REPACK */
-							errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
-								   RepackCommandAsString(stmt->command),
-								   RelationGetRelationName(rel)));
-			}
-
-			relid = determine_clustered_index(rel, stmt->usingindex,
-											  stmt->indexname);
-			if (!OidIsValid(relid))
-				elog(ERROR, "unable to determine index to cluster on");
-			check_index_is_clusterable(rel, relid, AccessExclusiveLock);
-
-			rel_is_index = true;
-		}
-		else
-		{
-			relid = RelationGetRelid(rel);
-			rel_is_index = false;
-		}
-
-		rtcs = get_tables_to_repack_partitioned(stmt->command,
-												relid, rel_is_index,
-												repack_context);
-
-		/* close parent relation, releasing lock on it */
-		table_close(rel, AccessExclusiveLock);
-		rel = NULL;
+		rtcs = get_tables_to_repack_partitioned(stmt, rel, repack_context);
+		rel = NULL;			/* clobber no longer valid pointer */
 	}
 
 	/* Commit to get out of starting transaction */
@@ -2255,19 +2205,66 @@ get_tables_to_repack(RepackCommand cmd, bool usingindex, MemoryContext permcxt)
 }
 
 /*
- * Given a partitioned table or its index, return a list of RelToCluster for
- * all the leaf child tables/indexes.
+ * Resolve a partitioned table named as target of REPACK to the list of
+ * its partitions, and return it as a list of RelToCluster.
  *
- * 'rel_is_index' tells whether 'relid' is that of an index (true) or of the
- * owning relation.
+ * The partitioned table in question was already opened and locked by caller
+ * and is given as argument; it is closed and unlocked here before return.
  */
 static List *
-get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
-								 bool rel_is_index, MemoryContext permcxt)
+get_tables_to_repack_partitioned(RepackStmt *stmt, Relation rel,
+								 MemoryContext permcxt)
 {
+	Oid			relid;
+	bool		rel_is_index;
 	List	   *inhoids;
 	List	   *rtcs = NIL;
 
+	Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
+	Assert(CheckRelationLockedByMe(rel, AccessExclusiveLock, false));
+
+	/*
+	 * We find the list of tables by looking for inheritors.  If USING INDEX
+	 * was given, look for inheritors of that index, whose name we resolve now.
+	 *
+	 * Otherwise we look for inheritors of the table itself.
+	 */
+	if (stmt->usingindex)
+	{
+		/*
+		 * If no index name was specified when repacking a partitioned
+		 * table, punt for now.  Maybe we can improve this later.
+		 */
+		if (!stmt->indexname)
+		{
+			if (stmt->command == REPACK_COMMAND_CLUSTER)
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						errmsg("there is no previously clustered index for table \"%s\"",
+							   RelationGetRelationName(rel)));
+			else
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						/*- translator: first %s is name of a SQL command, eg. REPACK */
+						errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
+							   RepackCommandAsString(stmt->command),
+							   RelationGetRelationName(rel)));
+		}
+
+		relid = determine_clustered_index(rel, stmt->usingindex,
+										  stmt->indexname);
+		if (!OidIsValid(relid))
+			elog(ERROR, "unable to determine index to cluster on");
+		check_index_is_clusterable(rel, relid, AccessExclusiveLock);
+
+		rel_is_index = true;
+	}
+	else
+	{
+		relid = RelationGetRelid(rel);
+		rel_is_index = false;
+	}
+
 	/*
 	 * Do not lock the children until they're processed.  Note that we do hold
 	 * a lock on the parent partitioned table.
@@ -2286,7 +2283,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 			if (get_rel_relkind(child_oid) != RELKIND_INDEX)
 				continue;
 
-			table_oid = IndexGetRelation(child_oid, false);
+			table_oid = IndexGetRelation(child_oid, true);
+			if (!OidIsValid(table_oid))
+				continue;
 			index_oid = child_oid;
 		}
 		else
@@ -2304,7 +2303,8 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		 * leaf partition despite having them on the partitioned table.  Skip
 		 * if so.
 		 */
-		if (!repack_is_permitted_for_relation(cmd, table_oid, GetUserId()))
+		if (!repack_is_permitted_for_relation(stmt->command, table_oid,
+											  GetUserId()))
 			continue;
 
 		/* Use a permanent memory context for the result list */
@@ -2316,6 +2316,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		MemoryContextSwitchTo(oldcxt);
 	}
 
+	/* close parent relation, releasing lock on it */
+	table_close(rel, AccessExclusiveLock);
+
 	return rtcs;
 }
 
-- 
2.47.3


--f4uihmgjmvhgvze3--





^ permalink  raw  reply  [nested|flat] 50+ messages in thread

* [PATCH] change get_tables_to_repack_partitioned
@ 2026-07-09 14:55  Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 50+ messages in thread

From: Álvaro Herrera @ 2026-07-09 14:55 UTC (permalink / raw)

---
 src/backend/commands/repack.c | 127 +++++++++++++++++-----------------
 1 file changed, 65 insertions(+), 62 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index 02883fe34a4..b3589ceff51 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -169,8 +169,8 @@ static void copy_table_data(Relation NewHeap, Relation OldHeap, Relation OldInde
 							MultiXactId *pCutoffMulti);
 static List *get_tables_to_repack(RepackCommand cmd, bool usingindex,
 								  MemoryContext permcxt);
-static List *get_tables_to_repack_partitioned(RepackCommand cmd,
-											  Oid relid, bool rel_is_index,
+static List *get_tables_to_repack_partitioned(RepackStmt *stmt,
+											  Relation rel,
 											  MemoryContext permcxt);
 static bool repack_is_permitted_for_relation(RepackCommand cmd,
 											 Oid relid, Oid userid);
@@ -387,58 +387,8 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	}
 	else
 	{
-		Oid			relid;
-		bool		rel_is_index;
-
-		Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
-
-		/*
-		 * If USING INDEX was specified, resolve the index name now and pass
-		 * it down.
-		 */
-		if (stmt->usingindex)
-		{
-			/*
-			 * If no index name was specified when repacking a partitioned
-			 * table, punt for now.  Maybe we can improve this later.
-			 */
-			if (!stmt->indexname)
-			{
-				if (stmt->command == REPACK_COMMAND_CLUSTER)
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-							errmsg("there is no previously clustered index for table \"%s\"",
-								   RelationGetRelationName(rel)));
-				else
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-					/*- translator: first %s is name of a SQL command, eg. REPACK */
-							errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
-								   RepackCommandAsString(stmt->command),
-								   RelationGetRelationName(rel)));
-			}
-
-			relid = determine_clustered_index(rel, stmt->usingindex,
-											  stmt->indexname);
-			if (!OidIsValid(relid))
-				elog(ERROR, "unable to determine index to cluster on");
-			check_index_is_clusterable(rel, relid, AccessExclusiveLock);
-
-			rel_is_index = true;
-		}
-		else
-		{
-			relid = RelationGetRelid(rel);
-			rel_is_index = false;
-		}
-
-		rtcs = get_tables_to_repack_partitioned(stmt->command,
-												relid, rel_is_index,
-												repack_context);
-
-		/* close parent relation, releasing lock on it */
-		table_close(rel, AccessExclusiveLock);
-		rel = NULL;
+		rtcs = get_tables_to_repack_partitioned(stmt, rel, repack_context);
+		rel = NULL;			/* clobber no longer valid pointer */
 	}
 
 	/* Commit to get out of starting transaction */
@@ -2255,19 +2205,66 @@ get_tables_to_repack(RepackCommand cmd, bool usingindex, MemoryContext permcxt)
 }
 
 /*
- * Given a partitioned table or its index, return a list of RelToCluster for
- * all the leaf child tables/indexes.
+ * Resolve a partitioned table named as target of REPACK to the list of
+ * its partitions, and return it as a list of RelToCluster.
  *
- * 'rel_is_index' tells whether 'relid' is that of an index (true) or of the
- * owning relation.
+ * The partitioned table in question was already opened and locked by caller
+ * and is given as argument; it is closed and unlocked here before return.
  */
 static List *
-get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
-								 bool rel_is_index, MemoryContext permcxt)
+get_tables_to_repack_partitioned(RepackStmt *stmt, Relation rel,
+								 MemoryContext permcxt)
 {
+	Oid			relid;
+	bool		rel_is_index;
 	List	   *inhoids;
 	List	   *rtcs = NIL;
 
+	Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
+	Assert(CheckRelationLockedByMe(rel, AccessExclusiveLock, false));
+
+	/*
+	 * We find the list of tables by looking for inheritors.  If USING INDEX
+	 * was given, look for inheritors of that index, whose name we resolve now.
+	 *
+	 * Otherwise we look for inheritors of the table itself.
+	 */
+	if (stmt->usingindex)
+	{
+		/*
+		 * If no index name was specified when repacking a partitioned
+		 * table, punt for now.  Maybe we can improve this later.
+		 */
+		if (!stmt->indexname)
+		{
+			if (stmt->command == REPACK_COMMAND_CLUSTER)
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						errmsg("there is no previously clustered index for table \"%s\"",
+							   RelationGetRelationName(rel)));
+			else
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						/*- translator: first %s is name of a SQL command, eg. REPACK */
+						errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
+							   RepackCommandAsString(stmt->command),
+							   RelationGetRelationName(rel)));
+		}
+
+		relid = determine_clustered_index(rel, stmt->usingindex,
+										  stmt->indexname);
+		if (!OidIsValid(relid))
+			elog(ERROR, "unable to determine index to cluster on");
+		check_index_is_clusterable(rel, relid, AccessExclusiveLock);
+
+		rel_is_index = true;
+	}
+	else
+	{
+		relid = RelationGetRelid(rel);
+		rel_is_index = false;
+	}
+
 	/*
 	 * Do not lock the children until they're processed.  Note that we do hold
 	 * a lock on the parent partitioned table.
@@ -2286,7 +2283,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 			if (get_rel_relkind(child_oid) != RELKIND_INDEX)
 				continue;
 
-			table_oid = IndexGetRelation(child_oid, false);
+			table_oid = IndexGetRelation(child_oid, true);
+			if (!OidIsValid(table_oid))
+				continue;
 			index_oid = child_oid;
 		}
 		else
@@ -2304,7 +2303,8 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		 * leaf partition despite having them on the partitioned table.  Skip
 		 * if so.
 		 */
-		if (!repack_is_permitted_for_relation(cmd, table_oid, GetUserId()))
+		if (!repack_is_permitted_for_relation(stmt->command, table_oid,
+											  GetUserId()))
 			continue;
 
 		/* Use a permanent memory context for the result list */
@@ -2316,6 +2316,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		MemoryContextSwitchTo(oldcxt);
 	}
 
+	/* close parent relation, releasing lock on it */
+	table_close(rel, AccessExclusiveLock);
+
 	return rtcs;
 }
 
-- 
2.47.3


--f4uihmgjmvhgvze3--





^ permalink  raw  reply  [nested|flat] 50+ messages in thread

* [PATCH] change get_tables_to_repack_partitioned
@ 2026-07-09 14:55  Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 50+ messages in thread

From: Álvaro Herrera @ 2026-07-09 14:55 UTC (permalink / raw)

---
 src/backend/commands/repack.c | 127 +++++++++++++++++-----------------
 1 file changed, 65 insertions(+), 62 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index 02883fe34a4..b3589ceff51 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -169,8 +169,8 @@ static void copy_table_data(Relation NewHeap, Relation OldHeap, Relation OldInde
 							MultiXactId *pCutoffMulti);
 static List *get_tables_to_repack(RepackCommand cmd, bool usingindex,
 								  MemoryContext permcxt);
-static List *get_tables_to_repack_partitioned(RepackCommand cmd,
-											  Oid relid, bool rel_is_index,
+static List *get_tables_to_repack_partitioned(RepackStmt *stmt,
+											  Relation rel,
 											  MemoryContext permcxt);
 static bool repack_is_permitted_for_relation(RepackCommand cmd,
 											 Oid relid, Oid userid);
@@ -387,58 +387,8 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	}
 	else
 	{
-		Oid			relid;
-		bool		rel_is_index;
-
-		Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
-
-		/*
-		 * If USING INDEX was specified, resolve the index name now and pass
-		 * it down.
-		 */
-		if (stmt->usingindex)
-		{
-			/*
-			 * If no index name was specified when repacking a partitioned
-			 * table, punt for now.  Maybe we can improve this later.
-			 */
-			if (!stmt->indexname)
-			{
-				if (stmt->command == REPACK_COMMAND_CLUSTER)
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-							errmsg("there is no previously clustered index for table \"%s\"",
-								   RelationGetRelationName(rel)));
-				else
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-					/*- translator: first %s is name of a SQL command, eg. REPACK */
-							errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
-								   RepackCommandAsString(stmt->command),
-								   RelationGetRelationName(rel)));
-			}
-
-			relid = determine_clustered_index(rel, stmt->usingindex,
-											  stmt->indexname);
-			if (!OidIsValid(relid))
-				elog(ERROR, "unable to determine index to cluster on");
-			check_index_is_clusterable(rel, relid, AccessExclusiveLock);
-
-			rel_is_index = true;
-		}
-		else
-		{
-			relid = RelationGetRelid(rel);
-			rel_is_index = false;
-		}
-
-		rtcs = get_tables_to_repack_partitioned(stmt->command,
-												relid, rel_is_index,
-												repack_context);
-
-		/* close parent relation, releasing lock on it */
-		table_close(rel, AccessExclusiveLock);
-		rel = NULL;
+		rtcs = get_tables_to_repack_partitioned(stmt, rel, repack_context);
+		rel = NULL;			/* clobber no longer valid pointer */
 	}
 
 	/* Commit to get out of starting transaction */
@@ -2255,19 +2205,66 @@ get_tables_to_repack(RepackCommand cmd, bool usingindex, MemoryContext permcxt)
 }
 
 /*
- * Given a partitioned table or its index, return a list of RelToCluster for
- * all the leaf child tables/indexes.
+ * Resolve a partitioned table named as target of REPACK to the list of
+ * its partitions, and return it as a list of RelToCluster.
  *
- * 'rel_is_index' tells whether 'relid' is that of an index (true) or of the
- * owning relation.
+ * The partitioned table in question was already opened and locked by caller
+ * and is given as argument; it is closed and unlocked here before return.
  */
 static List *
-get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
-								 bool rel_is_index, MemoryContext permcxt)
+get_tables_to_repack_partitioned(RepackStmt *stmt, Relation rel,
+								 MemoryContext permcxt)
 {
+	Oid			relid;
+	bool		rel_is_index;
 	List	   *inhoids;
 	List	   *rtcs = NIL;
 
+	Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
+	Assert(CheckRelationLockedByMe(rel, AccessExclusiveLock, false));
+
+	/*
+	 * We find the list of tables by looking for inheritors.  If USING INDEX
+	 * was given, look for inheritors of that index, whose name we resolve now.
+	 *
+	 * Otherwise we look for inheritors of the table itself.
+	 */
+	if (stmt->usingindex)
+	{
+		/*
+		 * If no index name was specified when repacking a partitioned
+		 * table, punt for now.  Maybe we can improve this later.
+		 */
+		if (!stmt->indexname)
+		{
+			if (stmt->command == REPACK_COMMAND_CLUSTER)
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						errmsg("there is no previously clustered index for table \"%s\"",
+							   RelationGetRelationName(rel)));
+			else
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						/*- translator: first %s is name of a SQL command, eg. REPACK */
+						errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
+							   RepackCommandAsString(stmt->command),
+							   RelationGetRelationName(rel)));
+		}
+
+		relid = determine_clustered_index(rel, stmt->usingindex,
+										  stmt->indexname);
+		if (!OidIsValid(relid))
+			elog(ERROR, "unable to determine index to cluster on");
+		check_index_is_clusterable(rel, relid, AccessExclusiveLock);
+
+		rel_is_index = true;
+	}
+	else
+	{
+		relid = RelationGetRelid(rel);
+		rel_is_index = false;
+	}
+
 	/*
 	 * Do not lock the children until they're processed.  Note that we do hold
 	 * a lock on the parent partitioned table.
@@ -2286,7 +2283,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 			if (get_rel_relkind(child_oid) != RELKIND_INDEX)
 				continue;
 
-			table_oid = IndexGetRelation(child_oid, false);
+			table_oid = IndexGetRelation(child_oid, true);
+			if (!OidIsValid(table_oid))
+				continue;
 			index_oid = child_oid;
 		}
 		else
@@ -2304,7 +2303,8 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		 * leaf partition despite having them on the partitioned table.  Skip
 		 * if so.
 		 */
-		if (!repack_is_permitted_for_relation(cmd, table_oid, GetUserId()))
+		if (!repack_is_permitted_for_relation(stmt->command, table_oid,
+											  GetUserId()))
 			continue;
 
 		/* Use a permanent memory context for the result list */
@@ -2316,6 +2316,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		MemoryContextSwitchTo(oldcxt);
 	}
 
+	/* close parent relation, releasing lock on it */
+	table_close(rel, AccessExclusiveLock);
+
 	return rtcs;
 }
 
-- 
2.47.3


--f4uihmgjmvhgvze3--





^ permalink  raw  reply  [nested|flat] 50+ messages in thread

* [PATCH] change get_tables_to_repack_partitioned
@ 2026-07-09 14:55  Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 50+ messages in thread

From: Álvaro Herrera @ 2026-07-09 14:55 UTC (permalink / raw)

---
 src/backend/commands/repack.c | 127 +++++++++++++++++-----------------
 1 file changed, 65 insertions(+), 62 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index 02883fe34a4..b3589ceff51 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -169,8 +169,8 @@ static void copy_table_data(Relation NewHeap, Relation OldHeap, Relation OldInde
 							MultiXactId *pCutoffMulti);
 static List *get_tables_to_repack(RepackCommand cmd, bool usingindex,
 								  MemoryContext permcxt);
-static List *get_tables_to_repack_partitioned(RepackCommand cmd,
-											  Oid relid, bool rel_is_index,
+static List *get_tables_to_repack_partitioned(RepackStmt *stmt,
+											  Relation rel,
 											  MemoryContext permcxt);
 static bool repack_is_permitted_for_relation(RepackCommand cmd,
 											 Oid relid, Oid userid);
@@ -387,58 +387,8 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	}
 	else
 	{
-		Oid			relid;
-		bool		rel_is_index;
-
-		Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
-
-		/*
-		 * If USING INDEX was specified, resolve the index name now and pass
-		 * it down.
-		 */
-		if (stmt->usingindex)
-		{
-			/*
-			 * If no index name was specified when repacking a partitioned
-			 * table, punt for now.  Maybe we can improve this later.
-			 */
-			if (!stmt->indexname)
-			{
-				if (stmt->command == REPACK_COMMAND_CLUSTER)
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-							errmsg("there is no previously clustered index for table \"%s\"",
-								   RelationGetRelationName(rel)));
-				else
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-					/*- translator: first %s is name of a SQL command, eg. REPACK */
-							errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
-								   RepackCommandAsString(stmt->command),
-								   RelationGetRelationName(rel)));
-			}
-
-			relid = determine_clustered_index(rel, stmt->usingindex,
-											  stmt->indexname);
-			if (!OidIsValid(relid))
-				elog(ERROR, "unable to determine index to cluster on");
-			check_index_is_clusterable(rel, relid, AccessExclusiveLock);
-
-			rel_is_index = true;
-		}
-		else
-		{
-			relid = RelationGetRelid(rel);
-			rel_is_index = false;
-		}
-
-		rtcs = get_tables_to_repack_partitioned(stmt->command,
-												relid, rel_is_index,
-												repack_context);
-
-		/* close parent relation, releasing lock on it */
-		table_close(rel, AccessExclusiveLock);
-		rel = NULL;
+		rtcs = get_tables_to_repack_partitioned(stmt, rel, repack_context);
+		rel = NULL;			/* clobber no longer valid pointer */
 	}
 
 	/* Commit to get out of starting transaction */
@@ -2255,19 +2205,66 @@ get_tables_to_repack(RepackCommand cmd, bool usingindex, MemoryContext permcxt)
 }
 
 /*
- * Given a partitioned table or its index, return a list of RelToCluster for
- * all the leaf child tables/indexes.
+ * Resolve a partitioned table named as target of REPACK to the list of
+ * its partitions, and return it as a list of RelToCluster.
  *
- * 'rel_is_index' tells whether 'relid' is that of an index (true) or of the
- * owning relation.
+ * The partitioned table in question was already opened and locked by caller
+ * and is given as argument; it is closed and unlocked here before return.
  */
 static List *
-get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
-								 bool rel_is_index, MemoryContext permcxt)
+get_tables_to_repack_partitioned(RepackStmt *stmt, Relation rel,
+								 MemoryContext permcxt)
 {
+	Oid			relid;
+	bool		rel_is_index;
 	List	   *inhoids;
 	List	   *rtcs = NIL;
 
+	Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
+	Assert(CheckRelationLockedByMe(rel, AccessExclusiveLock, false));
+
+	/*
+	 * We find the list of tables by looking for inheritors.  If USING INDEX
+	 * was given, look for inheritors of that index, whose name we resolve now.
+	 *
+	 * Otherwise we look for inheritors of the table itself.
+	 */
+	if (stmt->usingindex)
+	{
+		/*
+		 * If no index name was specified when repacking a partitioned
+		 * table, punt for now.  Maybe we can improve this later.
+		 */
+		if (!stmt->indexname)
+		{
+			if (stmt->command == REPACK_COMMAND_CLUSTER)
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						errmsg("there is no previously clustered index for table \"%s\"",
+							   RelationGetRelationName(rel)));
+			else
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						/*- translator: first %s is name of a SQL command, eg. REPACK */
+						errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
+							   RepackCommandAsString(stmt->command),
+							   RelationGetRelationName(rel)));
+		}
+
+		relid = determine_clustered_index(rel, stmt->usingindex,
+										  stmt->indexname);
+		if (!OidIsValid(relid))
+			elog(ERROR, "unable to determine index to cluster on");
+		check_index_is_clusterable(rel, relid, AccessExclusiveLock);
+
+		rel_is_index = true;
+	}
+	else
+	{
+		relid = RelationGetRelid(rel);
+		rel_is_index = false;
+	}
+
 	/*
 	 * Do not lock the children until they're processed.  Note that we do hold
 	 * a lock on the parent partitioned table.
@@ -2286,7 +2283,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 			if (get_rel_relkind(child_oid) != RELKIND_INDEX)
 				continue;
 
-			table_oid = IndexGetRelation(child_oid, false);
+			table_oid = IndexGetRelation(child_oid, true);
+			if (!OidIsValid(table_oid))
+				continue;
 			index_oid = child_oid;
 		}
 		else
@@ -2304,7 +2303,8 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		 * leaf partition despite having them on the partitioned table.  Skip
 		 * if so.
 		 */
-		if (!repack_is_permitted_for_relation(cmd, table_oid, GetUserId()))
+		if (!repack_is_permitted_for_relation(stmt->command, table_oid,
+											  GetUserId()))
 			continue;
 
 		/* Use a permanent memory context for the result list */
@@ -2316,6 +2316,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		MemoryContextSwitchTo(oldcxt);
 	}
 
+	/* close parent relation, releasing lock on it */
+	table_close(rel, AccessExclusiveLock);
+
 	return rtcs;
 }
 
-- 
2.47.3


--f4uihmgjmvhgvze3--





^ permalink  raw  reply  [nested|flat] 50+ messages in thread

* [PATCH] change get_tables_to_repack_partitioned
@ 2026-07-09 14:55  Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 50+ messages in thread

From: Álvaro Herrera @ 2026-07-09 14:55 UTC (permalink / raw)

---
 src/backend/commands/repack.c | 127 +++++++++++++++++-----------------
 1 file changed, 65 insertions(+), 62 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index 02883fe34a4..b3589ceff51 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -169,8 +169,8 @@ static void copy_table_data(Relation NewHeap, Relation OldHeap, Relation OldInde
 							MultiXactId *pCutoffMulti);
 static List *get_tables_to_repack(RepackCommand cmd, bool usingindex,
 								  MemoryContext permcxt);
-static List *get_tables_to_repack_partitioned(RepackCommand cmd,
-											  Oid relid, bool rel_is_index,
+static List *get_tables_to_repack_partitioned(RepackStmt *stmt,
+											  Relation rel,
 											  MemoryContext permcxt);
 static bool repack_is_permitted_for_relation(RepackCommand cmd,
 											 Oid relid, Oid userid);
@@ -387,58 +387,8 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	}
 	else
 	{
-		Oid			relid;
-		bool		rel_is_index;
-
-		Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
-
-		/*
-		 * If USING INDEX was specified, resolve the index name now and pass
-		 * it down.
-		 */
-		if (stmt->usingindex)
-		{
-			/*
-			 * If no index name was specified when repacking a partitioned
-			 * table, punt for now.  Maybe we can improve this later.
-			 */
-			if (!stmt->indexname)
-			{
-				if (stmt->command == REPACK_COMMAND_CLUSTER)
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-							errmsg("there is no previously clustered index for table \"%s\"",
-								   RelationGetRelationName(rel)));
-				else
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-					/*- translator: first %s is name of a SQL command, eg. REPACK */
-							errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
-								   RepackCommandAsString(stmt->command),
-								   RelationGetRelationName(rel)));
-			}
-
-			relid = determine_clustered_index(rel, stmt->usingindex,
-											  stmt->indexname);
-			if (!OidIsValid(relid))
-				elog(ERROR, "unable to determine index to cluster on");
-			check_index_is_clusterable(rel, relid, AccessExclusiveLock);
-
-			rel_is_index = true;
-		}
-		else
-		{
-			relid = RelationGetRelid(rel);
-			rel_is_index = false;
-		}
-
-		rtcs = get_tables_to_repack_partitioned(stmt->command,
-												relid, rel_is_index,
-												repack_context);
-
-		/* close parent relation, releasing lock on it */
-		table_close(rel, AccessExclusiveLock);
-		rel = NULL;
+		rtcs = get_tables_to_repack_partitioned(stmt, rel, repack_context);
+		rel = NULL;			/* clobber no longer valid pointer */
 	}
 
 	/* Commit to get out of starting transaction */
@@ -2255,19 +2205,66 @@ get_tables_to_repack(RepackCommand cmd, bool usingindex, MemoryContext permcxt)
 }
 
 /*
- * Given a partitioned table or its index, return a list of RelToCluster for
- * all the leaf child tables/indexes.
+ * Resolve a partitioned table named as target of REPACK to the list of
+ * its partitions, and return it as a list of RelToCluster.
  *
- * 'rel_is_index' tells whether 'relid' is that of an index (true) or of the
- * owning relation.
+ * The partitioned table in question was already opened and locked by caller
+ * and is given as argument; it is closed and unlocked here before return.
  */
 static List *
-get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
-								 bool rel_is_index, MemoryContext permcxt)
+get_tables_to_repack_partitioned(RepackStmt *stmt, Relation rel,
+								 MemoryContext permcxt)
 {
+	Oid			relid;
+	bool		rel_is_index;
 	List	   *inhoids;
 	List	   *rtcs = NIL;
 
+	Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
+	Assert(CheckRelationLockedByMe(rel, AccessExclusiveLock, false));
+
+	/*
+	 * We find the list of tables by looking for inheritors.  If USING INDEX
+	 * was given, look for inheritors of that index, whose name we resolve now.
+	 *
+	 * Otherwise we look for inheritors of the table itself.
+	 */
+	if (stmt->usingindex)
+	{
+		/*
+		 * If no index name was specified when repacking a partitioned
+		 * table, punt for now.  Maybe we can improve this later.
+		 */
+		if (!stmt->indexname)
+		{
+			if (stmt->command == REPACK_COMMAND_CLUSTER)
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						errmsg("there is no previously clustered index for table \"%s\"",
+							   RelationGetRelationName(rel)));
+			else
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						/*- translator: first %s is name of a SQL command, eg. REPACK */
+						errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
+							   RepackCommandAsString(stmt->command),
+							   RelationGetRelationName(rel)));
+		}
+
+		relid = determine_clustered_index(rel, stmt->usingindex,
+										  stmt->indexname);
+		if (!OidIsValid(relid))
+			elog(ERROR, "unable to determine index to cluster on");
+		check_index_is_clusterable(rel, relid, AccessExclusiveLock);
+
+		rel_is_index = true;
+	}
+	else
+	{
+		relid = RelationGetRelid(rel);
+		rel_is_index = false;
+	}
+
 	/*
 	 * Do not lock the children until they're processed.  Note that we do hold
 	 * a lock on the parent partitioned table.
@@ -2286,7 +2283,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 			if (get_rel_relkind(child_oid) != RELKIND_INDEX)
 				continue;
 
-			table_oid = IndexGetRelation(child_oid, false);
+			table_oid = IndexGetRelation(child_oid, true);
+			if (!OidIsValid(table_oid))
+				continue;
 			index_oid = child_oid;
 		}
 		else
@@ -2304,7 +2303,8 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		 * leaf partition despite having them on the partitioned table.  Skip
 		 * if so.
 		 */
-		if (!repack_is_permitted_for_relation(cmd, table_oid, GetUserId()))
+		if (!repack_is_permitted_for_relation(stmt->command, table_oid,
+											  GetUserId()))
 			continue;
 
 		/* Use a permanent memory context for the result list */
@@ -2316,6 +2316,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		MemoryContextSwitchTo(oldcxt);
 	}
 
+	/* close parent relation, releasing lock on it */
+	table_close(rel, AccessExclusiveLock);
+
 	return rtcs;
 }
 
-- 
2.47.3


--f4uihmgjmvhgvze3--





^ permalink  raw  reply  [nested|flat] 50+ messages in thread

* [PATCH] change get_tables_to_repack_partitioned
@ 2026-07-09 14:55  Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 50+ messages in thread

From: Álvaro Herrera @ 2026-07-09 14:55 UTC (permalink / raw)

---
 src/backend/commands/repack.c | 127 +++++++++++++++++-----------------
 1 file changed, 65 insertions(+), 62 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index 02883fe34a4..b3589ceff51 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -169,8 +169,8 @@ static void copy_table_data(Relation NewHeap, Relation OldHeap, Relation OldInde
 							MultiXactId *pCutoffMulti);
 static List *get_tables_to_repack(RepackCommand cmd, bool usingindex,
 								  MemoryContext permcxt);
-static List *get_tables_to_repack_partitioned(RepackCommand cmd,
-											  Oid relid, bool rel_is_index,
+static List *get_tables_to_repack_partitioned(RepackStmt *stmt,
+											  Relation rel,
 											  MemoryContext permcxt);
 static bool repack_is_permitted_for_relation(RepackCommand cmd,
 											 Oid relid, Oid userid);
@@ -387,58 +387,8 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	}
 	else
 	{
-		Oid			relid;
-		bool		rel_is_index;
-
-		Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
-
-		/*
-		 * If USING INDEX was specified, resolve the index name now and pass
-		 * it down.
-		 */
-		if (stmt->usingindex)
-		{
-			/*
-			 * If no index name was specified when repacking a partitioned
-			 * table, punt for now.  Maybe we can improve this later.
-			 */
-			if (!stmt->indexname)
-			{
-				if (stmt->command == REPACK_COMMAND_CLUSTER)
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-							errmsg("there is no previously clustered index for table \"%s\"",
-								   RelationGetRelationName(rel)));
-				else
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-					/*- translator: first %s is name of a SQL command, eg. REPACK */
-							errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
-								   RepackCommandAsString(stmt->command),
-								   RelationGetRelationName(rel)));
-			}
-
-			relid = determine_clustered_index(rel, stmt->usingindex,
-											  stmt->indexname);
-			if (!OidIsValid(relid))
-				elog(ERROR, "unable to determine index to cluster on");
-			check_index_is_clusterable(rel, relid, AccessExclusiveLock);
-
-			rel_is_index = true;
-		}
-		else
-		{
-			relid = RelationGetRelid(rel);
-			rel_is_index = false;
-		}
-
-		rtcs = get_tables_to_repack_partitioned(stmt->command,
-												relid, rel_is_index,
-												repack_context);
-
-		/* close parent relation, releasing lock on it */
-		table_close(rel, AccessExclusiveLock);
-		rel = NULL;
+		rtcs = get_tables_to_repack_partitioned(stmt, rel, repack_context);
+		rel = NULL;			/* clobber no longer valid pointer */
 	}
 
 	/* Commit to get out of starting transaction */
@@ -2255,19 +2205,66 @@ get_tables_to_repack(RepackCommand cmd, bool usingindex, MemoryContext permcxt)
 }
 
 /*
- * Given a partitioned table or its index, return a list of RelToCluster for
- * all the leaf child tables/indexes.
+ * Resolve a partitioned table named as target of REPACK to the list of
+ * its partitions, and return it as a list of RelToCluster.
  *
- * 'rel_is_index' tells whether 'relid' is that of an index (true) or of the
- * owning relation.
+ * The partitioned table in question was already opened and locked by caller
+ * and is given as argument; it is closed and unlocked here before return.
  */
 static List *
-get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
-								 bool rel_is_index, MemoryContext permcxt)
+get_tables_to_repack_partitioned(RepackStmt *stmt, Relation rel,
+								 MemoryContext permcxt)
 {
+	Oid			relid;
+	bool		rel_is_index;
 	List	   *inhoids;
 	List	   *rtcs = NIL;
 
+	Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
+	Assert(CheckRelationLockedByMe(rel, AccessExclusiveLock, false));
+
+	/*
+	 * We find the list of tables by looking for inheritors.  If USING INDEX
+	 * was given, look for inheritors of that index, whose name we resolve now.
+	 *
+	 * Otherwise we look for inheritors of the table itself.
+	 */
+	if (stmt->usingindex)
+	{
+		/*
+		 * If no index name was specified when repacking a partitioned
+		 * table, punt for now.  Maybe we can improve this later.
+		 */
+		if (!stmt->indexname)
+		{
+			if (stmt->command == REPACK_COMMAND_CLUSTER)
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						errmsg("there is no previously clustered index for table \"%s\"",
+							   RelationGetRelationName(rel)));
+			else
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						/*- translator: first %s is name of a SQL command, eg. REPACK */
+						errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
+							   RepackCommandAsString(stmt->command),
+							   RelationGetRelationName(rel)));
+		}
+
+		relid = determine_clustered_index(rel, stmt->usingindex,
+										  stmt->indexname);
+		if (!OidIsValid(relid))
+			elog(ERROR, "unable to determine index to cluster on");
+		check_index_is_clusterable(rel, relid, AccessExclusiveLock);
+
+		rel_is_index = true;
+	}
+	else
+	{
+		relid = RelationGetRelid(rel);
+		rel_is_index = false;
+	}
+
 	/*
 	 * Do not lock the children until they're processed.  Note that we do hold
 	 * a lock on the parent partitioned table.
@@ -2286,7 +2283,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 			if (get_rel_relkind(child_oid) != RELKIND_INDEX)
 				continue;
 
-			table_oid = IndexGetRelation(child_oid, false);
+			table_oid = IndexGetRelation(child_oid, true);
+			if (!OidIsValid(table_oid))
+				continue;
 			index_oid = child_oid;
 		}
 		else
@@ -2304,7 +2303,8 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		 * leaf partition despite having them on the partitioned table.  Skip
 		 * if so.
 		 */
-		if (!repack_is_permitted_for_relation(cmd, table_oid, GetUserId()))
+		if (!repack_is_permitted_for_relation(stmt->command, table_oid,
+											  GetUserId()))
 			continue;
 
 		/* Use a permanent memory context for the result list */
@@ -2316,6 +2316,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		MemoryContextSwitchTo(oldcxt);
 	}
 
+	/* close parent relation, releasing lock on it */
+	table_close(rel, AccessExclusiveLock);
+
 	return rtcs;
 }
 
-- 
2.47.3


--f4uihmgjmvhgvze3--





^ permalink  raw  reply  [nested|flat] 50+ messages in thread

* [PATCH] change get_tables_to_repack_partitioned
@ 2026-07-09 14:55  Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 50+ messages in thread

From: Álvaro Herrera @ 2026-07-09 14:55 UTC (permalink / raw)

---
 src/backend/commands/repack.c | 127 +++++++++++++++++-----------------
 1 file changed, 65 insertions(+), 62 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index 02883fe34a4..b3589ceff51 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -169,8 +169,8 @@ static void copy_table_data(Relation NewHeap, Relation OldHeap, Relation OldInde
 							MultiXactId *pCutoffMulti);
 static List *get_tables_to_repack(RepackCommand cmd, bool usingindex,
 								  MemoryContext permcxt);
-static List *get_tables_to_repack_partitioned(RepackCommand cmd,
-											  Oid relid, bool rel_is_index,
+static List *get_tables_to_repack_partitioned(RepackStmt *stmt,
+											  Relation rel,
 											  MemoryContext permcxt);
 static bool repack_is_permitted_for_relation(RepackCommand cmd,
 											 Oid relid, Oid userid);
@@ -387,58 +387,8 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	}
 	else
 	{
-		Oid			relid;
-		bool		rel_is_index;
-
-		Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
-
-		/*
-		 * If USING INDEX was specified, resolve the index name now and pass
-		 * it down.
-		 */
-		if (stmt->usingindex)
-		{
-			/*
-			 * If no index name was specified when repacking a partitioned
-			 * table, punt for now.  Maybe we can improve this later.
-			 */
-			if (!stmt->indexname)
-			{
-				if (stmt->command == REPACK_COMMAND_CLUSTER)
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-							errmsg("there is no previously clustered index for table \"%s\"",
-								   RelationGetRelationName(rel)));
-				else
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-					/*- translator: first %s is name of a SQL command, eg. REPACK */
-							errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
-								   RepackCommandAsString(stmt->command),
-								   RelationGetRelationName(rel)));
-			}
-
-			relid = determine_clustered_index(rel, stmt->usingindex,
-											  stmt->indexname);
-			if (!OidIsValid(relid))
-				elog(ERROR, "unable to determine index to cluster on");
-			check_index_is_clusterable(rel, relid, AccessExclusiveLock);
-
-			rel_is_index = true;
-		}
-		else
-		{
-			relid = RelationGetRelid(rel);
-			rel_is_index = false;
-		}
-
-		rtcs = get_tables_to_repack_partitioned(stmt->command,
-												relid, rel_is_index,
-												repack_context);
-
-		/* close parent relation, releasing lock on it */
-		table_close(rel, AccessExclusiveLock);
-		rel = NULL;
+		rtcs = get_tables_to_repack_partitioned(stmt, rel, repack_context);
+		rel = NULL;			/* clobber no longer valid pointer */
 	}
 
 	/* Commit to get out of starting transaction */
@@ -2255,19 +2205,66 @@ get_tables_to_repack(RepackCommand cmd, bool usingindex, MemoryContext permcxt)
 }
 
 /*
- * Given a partitioned table or its index, return a list of RelToCluster for
- * all the leaf child tables/indexes.
+ * Resolve a partitioned table named as target of REPACK to the list of
+ * its partitions, and return it as a list of RelToCluster.
  *
- * 'rel_is_index' tells whether 'relid' is that of an index (true) or of the
- * owning relation.
+ * The partitioned table in question was already opened and locked by caller
+ * and is given as argument; it is closed and unlocked here before return.
  */
 static List *
-get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
-								 bool rel_is_index, MemoryContext permcxt)
+get_tables_to_repack_partitioned(RepackStmt *stmt, Relation rel,
+								 MemoryContext permcxt)
 {
+	Oid			relid;
+	bool		rel_is_index;
 	List	   *inhoids;
 	List	   *rtcs = NIL;
 
+	Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
+	Assert(CheckRelationLockedByMe(rel, AccessExclusiveLock, false));
+
+	/*
+	 * We find the list of tables by looking for inheritors.  If USING INDEX
+	 * was given, look for inheritors of that index, whose name we resolve now.
+	 *
+	 * Otherwise we look for inheritors of the table itself.
+	 */
+	if (stmt->usingindex)
+	{
+		/*
+		 * If no index name was specified when repacking a partitioned
+		 * table, punt for now.  Maybe we can improve this later.
+		 */
+		if (!stmt->indexname)
+		{
+			if (stmt->command == REPACK_COMMAND_CLUSTER)
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						errmsg("there is no previously clustered index for table \"%s\"",
+							   RelationGetRelationName(rel)));
+			else
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						/*- translator: first %s is name of a SQL command, eg. REPACK */
+						errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
+							   RepackCommandAsString(stmt->command),
+							   RelationGetRelationName(rel)));
+		}
+
+		relid = determine_clustered_index(rel, stmt->usingindex,
+										  stmt->indexname);
+		if (!OidIsValid(relid))
+			elog(ERROR, "unable to determine index to cluster on");
+		check_index_is_clusterable(rel, relid, AccessExclusiveLock);
+
+		rel_is_index = true;
+	}
+	else
+	{
+		relid = RelationGetRelid(rel);
+		rel_is_index = false;
+	}
+
 	/*
 	 * Do not lock the children until they're processed.  Note that we do hold
 	 * a lock on the parent partitioned table.
@@ -2286,7 +2283,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 			if (get_rel_relkind(child_oid) != RELKIND_INDEX)
 				continue;
 
-			table_oid = IndexGetRelation(child_oid, false);
+			table_oid = IndexGetRelation(child_oid, true);
+			if (!OidIsValid(table_oid))
+				continue;
 			index_oid = child_oid;
 		}
 		else
@@ -2304,7 +2303,8 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		 * leaf partition despite having them on the partitioned table.  Skip
 		 * if so.
 		 */
-		if (!repack_is_permitted_for_relation(cmd, table_oid, GetUserId()))
+		if (!repack_is_permitted_for_relation(stmt->command, table_oid,
+											  GetUserId()))
 			continue;
 
 		/* Use a permanent memory context for the result list */
@@ -2316,6 +2316,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		MemoryContextSwitchTo(oldcxt);
 	}
 
+	/* close parent relation, releasing lock on it */
+	table_close(rel, AccessExclusiveLock);
+
 	return rtcs;
 }
 
-- 
2.47.3


--f4uihmgjmvhgvze3--





^ permalink  raw  reply  [nested|flat] 50+ messages in thread

* [PATCH] change get_tables_to_repack_partitioned
@ 2026-07-09 14:55  Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 50+ messages in thread

From: Álvaro Herrera @ 2026-07-09 14:55 UTC (permalink / raw)

---
 src/backend/commands/repack.c | 127 +++++++++++++++++-----------------
 1 file changed, 65 insertions(+), 62 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index 02883fe34a4..b3589ceff51 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -169,8 +169,8 @@ static void copy_table_data(Relation NewHeap, Relation OldHeap, Relation OldInde
 							MultiXactId *pCutoffMulti);
 static List *get_tables_to_repack(RepackCommand cmd, bool usingindex,
 								  MemoryContext permcxt);
-static List *get_tables_to_repack_partitioned(RepackCommand cmd,
-											  Oid relid, bool rel_is_index,
+static List *get_tables_to_repack_partitioned(RepackStmt *stmt,
+											  Relation rel,
 											  MemoryContext permcxt);
 static bool repack_is_permitted_for_relation(RepackCommand cmd,
 											 Oid relid, Oid userid);
@@ -387,58 +387,8 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	}
 	else
 	{
-		Oid			relid;
-		bool		rel_is_index;
-
-		Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
-
-		/*
-		 * If USING INDEX was specified, resolve the index name now and pass
-		 * it down.
-		 */
-		if (stmt->usingindex)
-		{
-			/*
-			 * If no index name was specified when repacking a partitioned
-			 * table, punt for now.  Maybe we can improve this later.
-			 */
-			if (!stmt->indexname)
-			{
-				if (stmt->command == REPACK_COMMAND_CLUSTER)
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-							errmsg("there is no previously clustered index for table \"%s\"",
-								   RelationGetRelationName(rel)));
-				else
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-					/*- translator: first %s is name of a SQL command, eg. REPACK */
-							errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
-								   RepackCommandAsString(stmt->command),
-								   RelationGetRelationName(rel)));
-			}
-
-			relid = determine_clustered_index(rel, stmt->usingindex,
-											  stmt->indexname);
-			if (!OidIsValid(relid))
-				elog(ERROR, "unable to determine index to cluster on");
-			check_index_is_clusterable(rel, relid, AccessExclusiveLock);
-
-			rel_is_index = true;
-		}
-		else
-		{
-			relid = RelationGetRelid(rel);
-			rel_is_index = false;
-		}
-
-		rtcs = get_tables_to_repack_partitioned(stmt->command,
-												relid, rel_is_index,
-												repack_context);
-
-		/* close parent relation, releasing lock on it */
-		table_close(rel, AccessExclusiveLock);
-		rel = NULL;
+		rtcs = get_tables_to_repack_partitioned(stmt, rel, repack_context);
+		rel = NULL;			/* clobber no longer valid pointer */
 	}
 
 	/* Commit to get out of starting transaction */
@@ -2255,19 +2205,66 @@ get_tables_to_repack(RepackCommand cmd, bool usingindex, MemoryContext permcxt)
 }
 
 /*
- * Given a partitioned table or its index, return a list of RelToCluster for
- * all the leaf child tables/indexes.
+ * Resolve a partitioned table named as target of REPACK to the list of
+ * its partitions, and return it as a list of RelToCluster.
  *
- * 'rel_is_index' tells whether 'relid' is that of an index (true) or of the
- * owning relation.
+ * The partitioned table in question was already opened and locked by caller
+ * and is given as argument; it is closed and unlocked here before return.
  */
 static List *
-get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
-								 bool rel_is_index, MemoryContext permcxt)
+get_tables_to_repack_partitioned(RepackStmt *stmt, Relation rel,
+								 MemoryContext permcxt)
 {
+	Oid			relid;
+	bool		rel_is_index;
 	List	   *inhoids;
 	List	   *rtcs = NIL;
 
+	Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
+	Assert(CheckRelationLockedByMe(rel, AccessExclusiveLock, false));
+
+	/*
+	 * We find the list of tables by looking for inheritors.  If USING INDEX
+	 * was given, look for inheritors of that index, whose name we resolve now.
+	 *
+	 * Otherwise we look for inheritors of the table itself.
+	 */
+	if (stmt->usingindex)
+	{
+		/*
+		 * If no index name was specified when repacking a partitioned
+		 * table, punt for now.  Maybe we can improve this later.
+		 */
+		if (!stmt->indexname)
+		{
+			if (stmt->command == REPACK_COMMAND_CLUSTER)
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						errmsg("there is no previously clustered index for table \"%s\"",
+							   RelationGetRelationName(rel)));
+			else
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						/*- translator: first %s is name of a SQL command, eg. REPACK */
+						errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
+							   RepackCommandAsString(stmt->command),
+							   RelationGetRelationName(rel)));
+		}
+
+		relid = determine_clustered_index(rel, stmt->usingindex,
+										  stmt->indexname);
+		if (!OidIsValid(relid))
+			elog(ERROR, "unable to determine index to cluster on");
+		check_index_is_clusterable(rel, relid, AccessExclusiveLock);
+
+		rel_is_index = true;
+	}
+	else
+	{
+		relid = RelationGetRelid(rel);
+		rel_is_index = false;
+	}
+
 	/*
 	 * Do not lock the children until they're processed.  Note that we do hold
 	 * a lock on the parent partitioned table.
@@ -2286,7 +2283,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 			if (get_rel_relkind(child_oid) != RELKIND_INDEX)
 				continue;
 
-			table_oid = IndexGetRelation(child_oid, false);
+			table_oid = IndexGetRelation(child_oid, true);
+			if (!OidIsValid(table_oid))
+				continue;
 			index_oid = child_oid;
 		}
 		else
@@ -2304,7 +2303,8 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		 * leaf partition despite having them on the partitioned table.  Skip
 		 * if so.
 		 */
-		if (!repack_is_permitted_for_relation(cmd, table_oid, GetUserId()))
+		if (!repack_is_permitted_for_relation(stmt->command, table_oid,
+											  GetUserId()))
 			continue;
 
 		/* Use a permanent memory context for the result list */
@@ -2316,6 +2316,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		MemoryContextSwitchTo(oldcxt);
 	}
 
+	/* close parent relation, releasing lock on it */
+	table_close(rel, AccessExclusiveLock);
+
 	return rtcs;
 }
 
-- 
2.47.3


--f4uihmgjmvhgvze3--





^ permalink  raw  reply  [nested|flat] 50+ messages in thread

* [PATCH] change get_tables_to_repack_partitioned
@ 2026-07-09 14:55  Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 50+ messages in thread

From: Álvaro Herrera @ 2026-07-09 14:55 UTC (permalink / raw)

---
 src/backend/commands/repack.c | 127 +++++++++++++++++-----------------
 1 file changed, 65 insertions(+), 62 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index 02883fe34a4..b3589ceff51 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -169,8 +169,8 @@ static void copy_table_data(Relation NewHeap, Relation OldHeap, Relation OldInde
 							MultiXactId *pCutoffMulti);
 static List *get_tables_to_repack(RepackCommand cmd, bool usingindex,
 								  MemoryContext permcxt);
-static List *get_tables_to_repack_partitioned(RepackCommand cmd,
-											  Oid relid, bool rel_is_index,
+static List *get_tables_to_repack_partitioned(RepackStmt *stmt,
+											  Relation rel,
 											  MemoryContext permcxt);
 static bool repack_is_permitted_for_relation(RepackCommand cmd,
 											 Oid relid, Oid userid);
@@ -387,58 +387,8 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	}
 	else
 	{
-		Oid			relid;
-		bool		rel_is_index;
-
-		Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
-
-		/*
-		 * If USING INDEX was specified, resolve the index name now and pass
-		 * it down.
-		 */
-		if (stmt->usingindex)
-		{
-			/*
-			 * If no index name was specified when repacking a partitioned
-			 * table, punt for now.  Maybe we can improve this later.
-			 */
-			if (!stmt->indexname)
-			{
-				if (stmt->command == REPACK_COMMAND_CLUSTER)
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-							errmsg("there is no previously clustered index for table \"%s\"",
-								   RelationGetRelationName(rel)));
-				else
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-					/*- translator: first %s is name of a SQL command, eg. REPACK */
-							errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
-								   RepackCommandAsString(stmt->command),
-								   RelationGetRelationName(rel)));
-			}
-
-			relid = determine_clustered_index(rel, stmt->usingindex,
-											  stmt->indexname);
-			if (!OidIsValid(relid))
-				elog(ERROR, "unable to determine index to cluster on");
-			check_index_is_clusterable(rel, relid, AccessExclusiveLock);
-
-			rel_is_index = true;
-		}
-		else
-		{
-			relid = RelationGetRelid(rel);
-			rel_is_index = false;
-		}
-
-		rtcs = get_tables_to_repack_partitioned(stmt->command,
-												relid, rel_is_index,
-												repack_context);
-
-		/* close parent relation, releasing lock on it */
-		table_close(rel, AccessExclusiveLock);
-		rel = NULL;
+		rtcs = get_tables_to_repack_partitioned(stmt, rel, repack_context);
+		rel = NULL;			/* clobber no longer valid pointer */
 	}
 
 	/* Commit to get out of starting transaction */
@@ -2255,19 +2205,66 @@ get_tables_to_repack(RepackCommand cmd, bool usingindex, MemoryContext permcxt)
 }
 
 /*
- * Given a partitioned table or its index, return a list of RelToCluster for
- * all the leaf child tables/indexes.
+ * Resolve a partitioned table named as target of REPACK to the list of
+ * its partitions, and return it as a list of RelToCluster.
  *
- * 'rel_is_index' tells whether 'relid' is that of an index (true) or of the
- * owning relation.
+ * The partitioned table in question was already opened and locked by caller
+ * and is given as argument; it is closed and unlocked here before return.
  */
 static List *
-get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
-								 bool rel_is_index, MemoryContext permcxt)
+get_tables_to_repack_partitioned(RepackStmt *stmt, Relation rel,
+								 MemoryContext permcxt)
 {
+	Oid			relid;
+	bool		rel_is_index;
 	List	   *inhoids;
 	List	   *rtcs = NIL;
 
+	Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
+	Assert(CheckRelationLockedByMe(rel, AccessExclusiveLock, false));
+
+	/*
+	 * We find the list of tables by looking for inheritors.  If USING INDEX
+	 * was given, look for inheritors of that index, whose name we resolve now.
+	 *
+	 * Otherwise we look for inheritors of the table itself.
+	 */
+	if (stmt->usingindex)
+	{
+		/*
+		 * If no index name was specified when repacking a partitioned
+		 * table, punt for now.  Maybe we can improve this later.
+		 */
+		if (!stmt->indexname)
+		{
+			if (stmt->command == REPACK_COMMAND_CLUSTER)
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						errmsg("there is no previously clustered index for table \"%s\"",
+							   RelationGetRelationName(rel)));
+			else
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						/*- translator: first %s is name of a SQL command, eg. REPACK */
+						errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
+							   RepackCommandAsString(stmt->command),
+							   RelationGetRelationName(rel)));
+		}
+
+		relid = determine_clustered_index(rel, stmt->usingindex,
+										  stmt->indexname);
+		if (!OidIsValid(relid))
+			elog(ERROR, "unable to determine index to cluster on");
+		check_index_is_clusterable(rel, relid, AccessExclusiveLock);
+
+		rel_is_index = true;
+	}
+	else
+	{
+		relid = RelationGetRelid(rel);
+		rel_is_index = false;
+	}
+
 	/*
 	 * Do not lock the children until they're processed.  Note that we do hold
 	 * a lock on the parent partitioned table.
@@ -2286,7 +2283,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 			if (get_rel_relkind(child_oid) != RELKIND_INDEX)
 				continue;
 
-			table_oid = IndexGetRelation(child_oid, false);
+			table_oid = IndexGetRelation(child_oid, true);
+			if (!OidIsValid(table_oid))
+				continue;
 			index_oid = child_oid;
 		}
 		else
@@ -2304,7 +2303,8 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		 * leaf partition despite having them on the partitioned table.  Skip
 		 * if so.
 		 */
-		if (!repack_is_permitted_for_relation(cmd, table_oid, GetUserId()))
+		if (!repack_is_permitted_for_relation(stmt->command, table_oid,
+											  GetUserId()))
 			continue;
 
 		/* Use a permanent memory context for the result list */
@@ -2316,6 +2316,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		MemoryContextSwitchTo(oldcxt);
 	}
 
+	/* close parent relation, releasing lock on it */
+	table_close(rel, AccessExclusiveLock);
+
 	return rtcs;
 }
 
-- 
2.47.3


--f4uihmgjmvhgvze3--





^ permalink  raw  reply  [nested|flat] 50+ messages in thread

* [PATCH] change get_tables_to_repack_partitioned
@ 2026-07-09 14:55  Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 50+ messages in thread

From: Álvaro Herrera @ 2026-07-09 14:55 UTC (permalink / raw)

---
 src/backend/commands/repack.c | 127 +++++++++++++++++-----------------
 1 file changed, 65 insertions(+), 62 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index 02883fe34a4..b3589ceff51 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -169,8 +169,8 @@ static void copy_table_data(Relation NewHeap, Relation OldHeap, Relation OldInde
 							MultiXactId *pCutoffMulti);
 static List *get_tables_to_repack(RepackCommand cmd, bool usingindex,
 								  MemoryContext permcxt);
-static List *get_tables_to_repack_partitioned(RepackCommand cmd,
-											  Oid relid, bool rel_is_index,
+static List *get_tables_to_repack_partitioned(RepackStmt *stmt,
+											  Relation rel,
 											  MemoryContext permcxt);
 static bool repack_is_permitted_for_relation(RepackCommand cmd,
 											 Oid relid, Oid userid);
@@ -387,58 +387,8 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	}
 	else
 	{
-		Oid			relid;
-		bool		rel_is_index;
-
-		Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
-
-		/*
-		 * If USING INDEX was specified, resolve the index name now and pass
-		 * it down.
-		 */
-		if (stmt->usingindex)
-		{
-			/*
-			 * If no index name was specified when repacking a partitioned
-			 * table, punt for now.  Maybe we can improve this later.
-			 */
-			if (!stmt->indexname)
-			{
-				if (stmt->command == REPACK_COMMAND_CLUSTER)
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-							errmsg("there is no previously clustered index for table \"%s\"",
-								   RelationGetRelationName(rel)));
-				else
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-					/*- translator: first %s is name of a SQL command, eg. REPACK */
-							errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
-								   RepackCommandAsString(stmt->command),
-								   RelationGetRelationName(rel)));
-			}
-
-			relid = determine_clustered_index(rel, stmt->usingindex,
-											  stmt->indexname);
-			if (!OidIsValid(relid))
-				elog(ERROR, "unable to determine index to cluster on");
-			check_index_is_clusterable(rel, relid, AccessExclusiveLock);
-
-			rel_is_index = true;
-		}
-		else
-		{
-			relid = RelationGetRelid(rel);
-			rel_is_index = false;
-		}
-
-		rtcs = get_tables_to_repack_partitioned(stmt->command,
-												relid, rel_is_index,
-												repack_context);
-
-		/* close parent relation, releasing lock on it */
-		table_close(rel, AccessExclusiveLock);
-		rel = NULL;
+		rtcs = get_tables_to_repack_partitioned(stmt, rel, repack_context);
+		rel = NULL;			/* clobber no longer valid pointer */
 	}
 
 	/* Commit to get out of starting transaction */
@@ -2255,19 +2205,66 @@ get_tables_to_repack(RepackCommand cmd, bool usingindex, MemoryContext permcxt)
 }
 
 /*
- * Given a partitioned table or its index, return a list of RelToCluster for
- * all the leaf child tables/indexes.
+ * Resolve a partitioned table named as target of REPACK to the list of
+ * its partitions, and return it as a list of RelToCluster.
  *
- * 'rel_is_index' tells whether 'relid' is that of an index (true) or of the
- * owning relation.
+ * The partitioned table in question was already opened and locked by caller
+ * and is given as argument; it is closed and unlocked here before return.
  */
 static List *
-get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
-								 bool rel_is_index, MemoryContext permcxt)
+get_tables_to_repack_partitioned(RepackStmt *stmt, Relation rel,
+								 MemoryContext permcxt)
 {
+	Oid			relid;
+	bool		rel_is_index;
 	List	   *inhoids;
 	List	   *rtcs = NIL;
 
+	Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
+	Assert(CheckRelationLockedByMe(rel, AccessExclusiveLock, false));
+
+	/*
+	 * We find the list of tables by looking for inheritors.  If USING INDEX
+	 * was given, look for inheritors of that index, whose name we resolve now.
+	 *
+	 * Otherwise we look for inheritors of the table itself.
+	 */
+	if (stmt->usingindex)
+	{
+		/*
+		 * If no index name was specified when repacking a partitioned
+		 * table, punt for now.  Maybe we can improve this later.
+		 */
+		if (!stmt->indexname)
+		{
+			if (stmt->command == REPACK_COMMAND_CLUSTER)
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						errmsg("there is no previously clustered index for table \"%s\"",
+							   RelationGetRelationName(rel)));
+			else
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						/*- translator: first %s is name of a SQL command, eg. REPACK */
+						errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
+							   RepackCommandAsString(stmt->command),
+							   RelationGetRelationName(rel)));
+		}
+
+		relid = determine_clustered_index(rel, stmt->usingindex,
+										  stmt->indexname);
+		if (!OidIsValid(relid))
+			elog(ERROR, "unable to determine index to cluster on");
+		check_index_is_clusterable(rel, relid, AccessExclusiveLock);
+
+		rel_is_index = true;
+	}
+	else
+	{
+		relid = RelationGetRelid(rel);
+		rel_is_index = false;
+	}
+
 	/*
 	 * Do not lock the children until they're processed.  Note that we do hold
 	 * a lock on the parent partitioned table.
@@ -2286,7 +2283,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 			if (get_rel_relkind(child_oid) != RELKIND_INDEX)
 				continue;
 
-			table_oid = IndexGetRelation(child_oid, false);
+			table_oid = IndexGetRelation(child_oid, true);
+			if (!OidIsValid(table_oid))
+				continue;
 			index_oid = child_oid;
 		}
 		else
@@ -2304,7 +2303,8 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		 * leaf partition despite having them on the partitioned table.  Skip
 		 * if so.
 		 */
-		if (!repack_is_permitted_for_relation(cmd, table_oid, GetUserId()))
+		if (!repack_is_permitted_for_relation(stmt->command, table_oid,
+											  GetUserId()))
 			continue;
 
 		/* Use a permanent memory context for the result list */
@@ -2316,6 +2316,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		MemoryContextSwitchTo(oldcxt);
 	}
 
+	/* close parent relation, releasing lock on it */
+	table_close(rel, AccessExclusiveLock);
+
 	return rtcs;
 }
 
-- 
2.47.3


--f4uihmgjmvhgvze3--





^ permalink  raw  reply  [nested|flat] 50+ messages in thread

* [PATCH] change get_tables_to_repack_partitioned
@ 2026-07-09 14:55  Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 50+ messages in thread

From: Álvaro Herrera @ 2026-07-09 14:55 UTC (permalink / raw)

---
 src/backend/commands/repack.c | 127 +++++++++++++++++-----------------
 1 file changed, 65 insertions(+), 62 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index 02883fe34a4..b3589ceff51 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -169,8 +169,8 @@ static void copy_table_data(Relation NewHeap, Relation OldHeap, Relation OldInde
 							MultiXactId *pCutoffMulti);
 static List *get_tables_to_repack(RepackCommand cmd, bool usingindex,
 								  MemoryContext permcxt);
-static List *get_tables_to_repack_partitioned(RepackCommand cmd,
-											  Oid relid, bool rel_is_index,
+static List *get_tables_to_repack_partitioned(RepackStmt *stmt,
+											  Relation rel,
 											  MemoryContext permcxt);
 static bool repack_is_permitted_for_relation(RepackCommand cmd,
 											 Oid relid, Oid userid);
@@ -387,58 +387,8 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	}
 	else
 	{
-		Oid			relid;
-		bool		rel_is_index;
-
-		Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
-
-		/*
-		 * If USING INDEX was specified, resolve the index name now and pass
-		 * it down.
-		 */
-		if (stmt->usingindex)
-		{
-			/*
-			 * If no index name was specified when repacking a partitioned
-			 * table, punt for now.  Maybe we can improve this later.
-			 */
-			if (!stmt->indexname)
-			{
-				if (stmt->command == REPACK_COMMAND_CLUSTER)
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-							errmsg("there is no previously clustered index for table \"%s\"",
-								   RelationGetRelationName(rel)));
-				else
-					ereport(ERROR,
-							errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-					/*- translator: first %s is name of a SQL command, eg. REPACK */
-							errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
-								   RepackCommandAsString(stmt->command),
-								   RelationGetRelationName(rel)));
-			}
-
-			relid = determine_clustered_index(rel, stmt->usingindex,
-											  stmt->indexname);
-			if (!OidIsValid(relid))
-				elog(ERROR, "unable to determine index to cluster on");
-			check_index_is_clusterable(rel, relid, AccessExclusiveLock);
-
-			rel_is_index = true;
-		}
-		else
-		{
-			relid = RelationGetRelid(rel);
-			rel_is_index = false;
-		}
-
-		rtcs = get_tables_to_repack_partitioned(stmt->command,
-												relid, rel_is_index,
-												repack_context);
-
-		/* close parent relation, releasing lock on it */
-		table_close(rel, AccessExclusiveLock);
-		rel = NULL;
+		rtcs = get_tables_to_repack_partitioned(stmt, rel, repack_context);
+		rel = NULL;			/* clobber no longer valid pointer */
 	}
 
 	/* Commit to get out of starting transaction */
@@ -2255,19 +2205,66 @@ get_tables_to_repack(RepackCommand cmd, bool usingindex, MemoryContext permcxt)
 }
 
 /*
- * Given a partitioned table or its index, return a list of RelToCluster for
- * all the leaf child tables/indexes.
+ * Resolve a partitioned table named as target of REPACK to the list of
+ * its partitions, and return it as a list of RelToCluster.
  *
- * 'rel_is_index' tells whether 'relid' is that of an index (true) or of the
- * owning relation.
+ * The partitioned table in question was already opened and locked by caller
+ * and is given as argument; it is closed and unlocked here before return.
  */
 static List *
-get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
-								 bool rel_is_index, MemoryContext permcxt)
+get_tables_to_repack_partitioned(RepackStmt *stmt, Relation rel,
+								 MemoryContext permcxt)
 {
+	Oid			relid;
+	bool		rel_is_index;
 	List	   *inhoids;
 	List	   *rtcs = NIL;
 
+	Assert(rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE);
+	Assert(CheckRelationLockedByMe(rel, AccessExclusiveLock, false));
+
+	/*
+	 * We find the list of tables by looking for inheritors.  If USING INDEX
+	 * was given, look for inheritors of that index, whose name we resolve now.
+	 *
+	 * Otherwise we look for inheritors of the table itself.
+	 */
+	if (stmt->usingindex)
+	{
+		/*
+		 * If no index name was specified when repacking a partitioned
+		 * table, punt for now.  Maybe we can improve this later.
+		 */
+		if (!stmt->indexname)
+		{
+			if (stmt->command == REPACK_COMMAND_CLUSTER)
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						errmsg("there is no previously clustered index for table \"%s\"",
+							   RelationGetRelationName(rel)));
+			else
+				ereport(ERROR,
+						errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+						/*- translator: first %s is name of a SQL command, eg. REPACK */
+						errmsg("cannot execute %s on partitioned table \"%s\" USING INDEX with no index name",
+							   RepackCommandAsString(stmt->command),
+							   RelationGetRelationName(rel)));
+		}
+
+		relid = determine_clustered_index(rel, stmt->usingindex,
+										  stmt->indexname);
+		if (!OidIsValid(relid))
+			elog(ERROR, "unable to determine index to cluster on");
+		check_index_is_clusterable(rel, relid, AccessExclusiveLock);
+
+		rel_is_index = true;
+	}
+	else
+	{
+		relid = RelationGetRelid(rel);
+		rel_is_index = false;
+	}
+
 	/*
 	 * Do not lock the children until they're processed.  Note that we do hold
 	 * a lock on the parent partitioned table.
@@ -2286,7 +2283,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 			if (get_rel_relkind(child_oid) != RELKIND_INDEX)
 				continue;
 
-			table_oid = IndexGetRelation(child_oid, false);
+			table_oid = IndexGetRelation(child_oid, true);
+			if (!OidIsValid(table_oid))
+				continue;
 			index_oid = child_oid;
 		}
 		else
@@ -2304,7 +2303,8 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		 * leaf partition despite having them on the partitioned table.  Skip
 		 * if so.
 		 */
-		if (!repack_is_permitted_for_relation(cmd, table_oid, GetUserId()))
+		if (!repack_is_permitted_for_relation(stmt->command, table_oid,
+											  GetUserId()))
 			continue;
 
 		/* Use a permanent memory context for the result list */
@@ -2316,6 +2316,9 @@ get_tables_to_repack_partitioned(RepackCommand cmd, Oid relid,
 		MemoryContextSwitchTo(oldcxt);
 	}
 
+	/* close parent relation, releasing lock on it */
+	table_close(rel, AccessExclusiveLock);
+
 	return rtcs;
 }
 
-- 
2.47.3


--f4uihmgjmvhgvze3--





^ permalink  raw  reply  [nested|flat] 50+ messages in thread

end of thread, other threads:[~2026-07-09 14:55 UTC | newest]

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2026-07-09 14:55 [PATCH] change get_tables_to_repack_partitioned Álvaro Herrera <[email protected]>
2026-07-09 14:55 [PATCH] change get_tables_to_repack_partitioned Álvaro Herrera <[email protected]>
2026-07-09 14:55 [PATCH] change get_tables_to_repack_partitioned Álvaro Herrera <[email protected]>
2026-07-09 14:55 [PATCH] change get_tables_to_repack_partitioned Álvaro Herrera <[email protected]>
2026-07-09 14:55 [PATCH] change get_tables_to_repack_partitioned Álvaro Herrera <[email protected]>
2026-07-09 14:55 [PATCH] change get_tables_to_repack_partitioned Álvaro Herrera <[email protected]>
2026-07-09 14:55 [PATCH] change get_tables_to_repack_partitioned Álvaro Herrera <[email protected]>
2026-07-09 14:55 [PATCH] change get_tables_to_repack_partitioned Álvaro Herrera <[email protected]>
2026-07-09 14:55 [PATCH] change get_tables_to_repack_partitioned Álvaro Herrera <[email protected]>
2026-07-09 14:55 [PATCH] change get_tables_to_repack_partitioned Álvaro Herrera <[email protected]>
2026-07-09 14:55 [PATCH] change get_tables_to_repack_partitioned Álvaro Herrera <[email protected]>
2026-07-09 14:55 [PATCH] change get_tables_to_repack_partitioned Álvaro Herrera <[email protected]>
2026-07-09 14:55 [PATCH] change get_tables_to_repack_partitioned Álvaro Herrera <[email protected]>
2026-07-09 14:55 [PATCH] change get_tables_to_repack_partitioned Álvaro Herrera <[email protected]>
2026-07-09 14:55 [PATCH] change get_tables_to_repack_partitioned Álvaro Herrera <[email protected]>
2026-07-09 14:55 [PATCH] change get_tables_to_repack_partitioned Álvaro Herrera <[email protected]>
2026-07-09 14:55 [PATCH] change get_tables_to_repack_partitioned Álvaro Herrera <[email protected]>
2026-07-09 14:55 [PATCH] change get_tables_to_repack_partitioned Álvaro Herrera <[email protected]>
2026-07-09 14:55 [PATCH] change get_tables_to_repack_partitioned Álvaro Herrera <[email protected]>
2026-07-09 14:55 [PATCH] change get_tables_to_repack_partitioned Álvaro Herrera <[email protected]>
2026-07-09 14:55 [PATCH] change get_tables_to_repack_partitioned Álvaro Herrera <[email protected]>
2026-07-09 14:55 [PATCH] change get_tables_to_repack_partitioned Álvaro Herrera <[email protected]>
2026-07-09 14:55 [PATCH] change get_tables_to_repack_partitioned Álvaro Herrera <[email protected]>
2026-07-09 14:55 [PATCH] change get_tables_to_repack_partitioned Álvaro Herrera <[email protected]>
2026-07-09 14:55 [PATCH] change get_tables_to_repack_partitioned Álvaro Herrera <[email protected]>
2026-07-09 14:55 [PATCH] change get_tables_to_repack_partitioned Álvaro Herrera <[email protected]>
2026-07-09 14:55 [PATCH] change get_tables_to_repack_partitioned Álvaro Herrera <[email protected]>
2026-07-09 14:55 [PATCH] change get_tables_to_repack_partitioned Álvaro Herrera <[email protected]>
2026-07-09 14:55 [PATCH] change get_tables_to_repack_partitioned Álvaro Herrera <[email protected]>
2026-07-09 14:55 [PATCH] change get_tables_to_repack_partitioned Álvaro Herrera <[email protected]>
2026-07-09 14:55 [PATCH] change get_tables_to_repack_partitioned Álvaro Herrera <[email protected]>
2026-07-09 14:55 [PATCH] change get_tables_to_repack_partitioned Álvaro Herrera <[email protected]>
2026-07-09 14:55 [PATCH] change get_tables_to_repack_partitioned Álvaro Herrera <[email protected]>
2026-07-09 14:55 [PATCH] change get_tables_to_repack_partitioned Álvaro Herrera <[email protected]>
2026-07-09 14:55 [PATCH] change get_tables_to_repack_partitioned Álvaro Herrera <[email protected]>
2026-07-09 14:55 [PATCH] change get_tables_to_repack_partitioned Álvaro Herrera <[email protected]>
2026-07-09 14:55 [PATCH] change get_tables_to_repack_partitioned Álvaro Herrera <[email protected]>
2026-07-09 14:55 [PATCH] change get_tables_to_repack_partitioned Álvaro Herrera <[email protected]>
2026-07-09 14:55 [PATCH] change get_tables_to_repack_partitioned Álvaro Herrera <[email protected]>
2026-07-09 14:55 [PATCH] change get_tables_to_repack_partitioned Álvaro Herrera <[email protected]>
2026-07-09 14:55 [PATCH] change get_tables_to_repack_partitioned Álvaro Herrera <[email protected]>
2026-07-09 14:55 [PATCH] change get_tables_to_repack_partitioned Álvaro Herrera <[email protected]>
2026-07-09 14:55 [PATCH] change get_tables_to_repack_partitioned Álvaro Herrera <[email protected]>
2026-07-09 14:55 [PATCH] change get_tables_to_repack_partitioned Álvaro Herrera <[email protected]>
2026-07-09 14:55 [PATCH] change get_tables_to_repack_partitioned Álvaro Herrera <[email protected]>
2026-07-09 14:55 [PATCH] change get_tables_to_repack_partitioned Álvaro Herrera <[email protected]>
2026-07-09 14:55 [PATCH] change get_tables_to_repack_partitioned Álvaro Herrera <[email protected]>
2026-07-09 14:55 [PATCH] change get_tables_to_repack_partitioned Álvaro Herrera <[email protected]>
2026-07-09 14:55 [PATCH] change get_tables_to_repack_partitioned Álvaro Herrera <[email protected]>

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