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[PATCH v13 06/18] More refactoring
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* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v13 06/18] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 201 ++++++++++-----------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 93 insertions(+), 112 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index f5fea14ff4..5c5596cd28 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2652,8 +2652,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params, CurrentMemoryContext);
 	}
 	else
@@ -3023,12 +3023,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_indexes(List *inhoids, int options, List **heaprels)
+leaf_indexes(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -3060,7 +3059,6 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3072,13 +3070,11 @@ leaf_indexes(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3132,7 +3128,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_indexes(inhoids, params->options, &heaprels);
+		partitions = leaf_indexes(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3145,7 +3141,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_indexes(partindexes, params->options, &heaprels);
+			partindexes = leaf_indexes(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3154,10 +3150,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3172,7 +3167,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3342,7 +3337,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3395,14 +3389,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3415,7 +3401,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3473,14 +3459,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3521,78 +3499,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-
-				if (OidIsValid(params->tablespaceOid) &&
-					IsSystemRelation(heapRelation))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot move system relation \"%s\"",
-									get_rel_name(relationOid))));
-
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3623,10 +3529,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
 						get_tablespace_name(params->tablespaceOid))));
 
-	Assert(heapRelationIds != NIL);
+	// Assert(heapRelationIds != NIL);
 
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3668,9 +3574,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-		ReindexParams *params, MemoryContext private_context)
+ReindexIndexesConcurrently(List *indexIds, ReindexParams *params,
+		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3688,6 +3595,80 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
 	};
 	int64		progress_vals[4];
 
+	/* It's not a shared catalog, so refuse to move it to shared tablespace */
+	if (params->tablespaceOid == GLOBALTABLESPACE_OID && false)
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot move non-shared relation to tablespace \"%s\"",
+						get_tablespace_name(params->tablespaceOid))));
+
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (params->options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (OidIsValid(params->tablespaceOid) &&
+			IsCatalogRelationOid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot move system relation \"%s\"",
+							get_rel_name(indexrelid))));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((params->options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 6f41adf736..830fdddf24 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--QTprm0S8XgL7H0Dt--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/5] More refactoring
@ 2020-11-01 19:46 Justin Pryzby <pryzbyj@telsasoft.com>
  0 siblings, 0 replies; 157+ messages in thread

From: Justin Pryzby @ 2020-11-01 19:46 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c           | 183 +++++++++------------
 src/test/regress/expected/create_index.out |   4 +-
 2 files changed, 83 insertions(+), 104 deletions(-)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 08d44a1999..4586942960 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -102,8 +102,8 @@ static void ReindexMultipleInternal(List *relids,
 									ReindexParams *params);
 static bool ReindexRelationConcurrently(Oid relationOid,
 										ReindexParams *params);
-static List *ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds,
-										int options, MemoryContext private_context);
+static List *ReindexIndexesConcurrently(List *indexIds, int options,
+										MemoryContext private_context);
 static void update_relispartition(Oid relationId, bool newval);
 static inline void set_indexsafe_procflags(void);
 
@@ -2625,8 +2625,8 @@ ReindexIndex(RangeVar *indexRelation, ReindexParams *params, bool isTopLevel)
 			.indexId = indOid,
 			/* other fields set later */
 		};
+
 		ReindexIndexesConcurrently(list_make1(&idxinfo),
-				list_make1_oid(IndexGetRelation(indOid, false)),
 				params->options, CurrentMemoryContext);
 	}
 	else
@@ -2961,12 +2961,11 @@ reindex_error_callback(void *arg)
 
 
 /*
- * Given a list of index oids, return a list of leaf partitions by removing
- * any intermediate parents.  heaprels is populated with the corresponding
- * tables.
+ * Given a list of index oids, return a new list of leaf partitions by
+ * excluding any intermediate parents.
  */
 static List *
-leaf_partitions(List *inhoids, int options, List **heaprels)
+leaf_partitions(List *inhoids, int options)
 {
 	List		*partitions = NIL;
 	ListCell	*lc;
@@ -2998,7 +2997,6 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
 
 		/* Save partition OID in current MemoryContext */
 		partitions = lappend_oid(partitions, partoid);
-		*heaprels = lappend_oid(*heaprels, tableoid);
 	}
 
 	return partitions;
@@ -3010,13 +3008,11 @@ leaf_partitions(List *inhoids, int options, List **heaprels)
  *
  * Reindex a set of partitions, per the partitioned index or table given
  * by the caller.
- * XXX: should be further refactored with logic from ReindexRelationConcurrently
  */
 static void
 ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 {
-	List	   *partitions = NIL,
-			*heaprels = NIL;
+	List	   *partitions = NIL;
 	char		relkind = get_rel_relkind(relid);
 	char	   *relname = get_rel_name(relid);
 	char	   *relnamespace = get_namespace_name(get_rel_namespace(relid));
@@ -3070,7 +3066,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	if (relkind == RELKIND_PARTITIONED_INDEX)
 	{
 		old_context = MemoryContextSwitchTo(reindex_context);
-		partitions = leaf_partitions(inhoids, params->options, &heaprels);
+		partitions = leaf_partitions(inhoids, params->options);
 		MemoryContextSwitchTo(old_context);
 	} else {
 		/* Loop over parent tables */
@@ -3083,7 +3079,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 			parttable = table_open(partoid, ShareLock);
 			old_context = MemoryContextSwitchTo(reindex_context);
 			partindexes = RelationGetIndexList(parttable);
-			partindexes = leaf_partitions(partindexes, params->options, &heaprels);
+			partindexes = leaf_partitions(partindexes, params->options);
 			partitions = list_concat(partitions, partindexes);
 
 			MemoryContextSwitchTo(old_context);
@@ -3092,10 +3088,9 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 	}
 
 	if ((params->options & REINDEXOPT_CONCURRENTLY) != 0 &&
-		relkind == RELKIND_PARTITIONED_INDEX &&
 		get_rel_persistence(relid) != RELPERSISTENCE_TEMP)
 	{
-		List			   *idxinfos = NIL;
+		List			    *idxinfos = NIL;
 		ReindexIndexInfo	*idxinfo;
 
 		old_context = MemoryContextSwitchTo(reindex_context);
@@ -3110,7 +3105,7 @@ ReindexPartitions(Oid relid, ReindexParams *params, bool isTopLevel)
 		MemoryContextSwitchTo(old_context);
 
 		/* Process all indexes in a single loop */
-		ReindexIndexesConcurrently(idxinfos, heaprels, params->options, reindex_context);
+		ReindexIndexesConcurrently(idxinfos, params->options, reindex_context);
 	} else {
 		/*
 		 * Process each partition listed in a separate transaction.  Note that
@@ -3262,7 +3257,6 @@ ReindexMultipleInternal(List *relids, ReindexParams *params)
 static bool
 ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 {
-	List	   *heapRelationIds = NIL;
 	List	   *indexIds = NIL;
 	List	   *newIndexIds = NIL;
 	ListCell   *lc,
@@ -3315,14 +3309,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				 */
 				Relation	heapRelation;
 
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track this relation for session locks */
-				heapRelationIds = lappend_oid(heapRelationIds, relationOid);
-
-				MemoryContextSwitchTo(oldcontext);
-
 				if (IsCatalogRelationOid(relationOid))
 					ereport(ERROR,
 							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@@ -3335,7 +3321,7 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 												  ShareUpdateExclusiveLock);
 					/* leave if relation does not exist */
 					if (!heapRelation)
-						break;
+						break; // XXX: lremove
 				}
 				else
 					heapRelation = table_open(relationOid,
@@ -3386,14 +3372,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 					Relation	toastRelation = table_open(toastOid,
 														   ShareUpdateExclusiveLock);
 
-					/* Save the list of relation OIDs in private context */
-					oldcontext = MemoryContextSwitchTo(private_context);
-
-					/* Track this relation for session locks */
-					heapRelationIds = lappend_oid(heapRelationIds, toastOid);
-
-					MemoryContextSwitchTo(oldcontext);
-
 					foreach(lc2, RelationGetIndexList(toastRelation))
 					{
 						Oid			cellOid = lfirst_oid(lc2);
@@ -3434,70 +3412,6 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 				break;
 			}
 		case RELKIND_INDEX:
-			{
-				Oid			heapId = IndexGetRelation(relationOid,
-													  (params->options & REINDEXOPT_MISSING_OK) != 0);
-				Relation	heapRelation;
-				ReindexIndexInfo *idx;
-
-				/* if relation is missing, leave */
-				if (!OidIsValid(heapId))
-					break;
-
-				if (IsCatalogRelationOid(heapId))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex system catalogs concurrently")));
-
-				/*
-				 * Don't allow reindex for an invalid index on TOAST table, as
-				 * if rebuilt it would not be possible to drop it.  Match
-				 * error message in reindex_index().
-				 */
-				if (IsToastNamespace(get_rel_namespace(relationOid)) &&
-					!get_index_isvalid(relationOid))
-					ereport(ERROR,
-							(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-							 errmsg("cannot reindex invalid index on TOAST table")));
-
-				/*
-				 * Check if parent relation can be locked and if it exists,
-				 * this needs to be done at this stage as the list of indexes
-				 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
-				 * should not be used once all the session locks are taken.
-				 */
-				if ((params->options & REINDEXOPT_MISSING_OK) != 0)
-				{
-					heapRelation = try_table_open(heapId,
-												  ShareUpdateExclusiveLock);
-					/* leave if relation does not exist */
-					if (!heapRelation)
-						break;
-				}
-				else
-					heapRelation = table_open(heapId,
-											  ShareUpdateExclusiveLock);
-				table_close(heapRelation, NoLock);
-
-				/* Save the list of relation OIDs in private context */
-				oldcontext = MemoryContextSwitchTo(private_context);
-
-				/* Track the heap relation of this index for session locks */
-				heapRelationIds = list_make1_oid(heapId);
-
-				/*
-				 * Save the list of relation OIDs in private context.  Note
-				 * that invalid indexes are allowed here.
-				 */
-				idx = palloc(sizeof(ReindexIndexInfo));
-				idx->indexId = relationOid;
-				indexIds = lappend(indexIds, idx);
-				/* other fields set later */
-
-				MemoryContextSwitchTo(oldcontext);
-				break;
-			}
-
 		case RELKIND_PARTITIONED_TABLE:
 		case RELKIND_PARTITIONED_INDEX:
 		default:
@@ -3521,10 +3435,8 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
 		return false;
 	}
 
-	Assert(heapRelationIds != NIL);
-
 	/* Do the work */
-	newIndexIds = ReindexIndexesConcurrently(indexIds, heapRelationIds, params->options, private_context);
+	newIndexIds = ReindexIndexesConcurrently(indexIds, params->options, private_context);
 
 	/* Log what we did */
 	if ((params->options & REINDEXOPT_VERBOSE) != 0)
@@ -3566,9 +3478,10 @@ ReindexRelationConcurrently(Oid relationOid, ReindexParams *params)
  * This is called by ReindexRelationConcurrently and
  */
 static List *
-ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
+ReindexIndexesConcurrently(List *indexIds, int options,
 		MemoryContext private_context)
 {
+	List		*heapRelationIds = NIL;
 	List	   *newIndexIds = NIL;
 	List	   *relationLocks = NIL;
 	List	   *lockTags = NIL;
@@ -3586,6 +3499,72 @@ ReindexIndexesConcurrently(List *indexIds, List *heapRelationIds, int options,
 	};
 	int64		progress_vals[4];
 
+	foreach(lc, indexIds)
+	{
+		ReindexIndexInfo	*idx = lfirst(lc);
+		Oid			indexrelid = idx->indexId;
+		Oid			heapId = IndexGetRelation(indexrelid,
+											  (options & REINDEXOPT_MISSING_OK) != 0);
+		Relation	heapRelation;
+
+		/* if relation is missing, leave */
+		if (!OidIsValid(heapId))
+			break; // XXX: ldelete?
+
+		if (IsCatalogRelationOid(heapId))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex system catalogs concurrently")));
+
+		/*
+		 * Don't allow reindex for an invalid index on TOAST table, as
+		 * if rebuilt it would not be possible to drop it.  Match
+		 * error message in reindex_index().
+		 */
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		if (IsToastNamespace(get_rel_namespace(indexrelid)) &&
+			!get_index_isvalid(indexrelid))
+			ereport(ERROR,
+					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+					 errmsg("cannot reindex invalid index on TOAST table")));
+
+		/*
+		 * Check if parent relation can be locked and if it exists,
+		 * this needs to be done at this stage as the list of indexes
+		 * to rebuild is not complete yet, and REINDEXOPT_MISSING_OK
+		 * should not be used once all the session locks are taken.
+		 */
+		if ((options & REINDEXOPT_MISSING_OK) != 0)
+		{
+			heapRelation = try_table_open(heapId,
+										  ShareUpdateExclusiveLock);
+			/* leave if relation does not exist */
+			if (!heapRelation)
+				break; // ldelete
+		}
+		else
+			heapRelation = table_open(heapId,
+									  ShareUpdateExclusiveLock);
+		table_close(heapRelation, NoLock);
+
+		/* Save the list of relation OIDs in private context */
+		oldcontext = MemoryContextSwitchTo(private_context);
+
+		/* Track the heap relation of this index for session locks */
+		heapRelationIds = lappend_oid(heapRelationIds, heapId);
+		// heapRelationIds = list_make1_oid(heapId);
+
+		/* Note that invalid indexes are allowed here. */
+
+		MemoryContextSwitchTo(oldcontext);
+		// break;
+	}
+
 	/*-----
 	 * Now we have all the indexes we want to process in indexIds.
 	 *
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 4a03ab2abb..fc6afab58a 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2470,12 +2470,12 @@ COMMIT;
 REINDEX TABLE CONCURRENTLY pg_class; -- no catalog relation
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_class_oid_index; -- no catalog index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 -- These are the toast table and index of pg_authid.
 REINDEX TABLE CONCURRENTLY pg_toast.pg_toast_1260; -- no catalog toast table
 ERROR:  cannot reindex system catalogs concurrently
 REINDEX INDEX CONCURRENTLY pg_toast.pg_toast_1260_index; -- no catalog toast index
-ERROR:  concurrent index creation on system catalog tables is not supported
+ERROR:  cannot reindex system catalogs concurrently
 REINDEX SYSTEM CONCURRENTLY postgres; -- not allowed for SYSTEM
 ERROR:  cannot reindex system catalogs concurrently
 -- Warns about catalog relations
-- 
2.17.0


--MfFXiAuoTsnnDAfZ--





^ permalink  raw  reply  [nested|flat] 157+ messages in thread

* [PATCH v12 5/7] Row pattern recognition patch (docs).
@ 2023-12-04 11:23 Tatsuo Ishii <ishii@postgresql.org>
  0 siblings, 0 replies; 157+ messages in thread

From: Tatsuo Ishii @ 2023-12-04 11:23 UTC (permalink / raw)

---
 doc/src/sgml/advanced.sgml   | 80 ++++++++++++++++++++++++++++++++++++
 doc/src/sgml/func.sgml       | 54 ++++++++++++++++++++++++
 doc/src/sgml/ref/select.sgml | 38 ++++++++++++++++-
 3 files changed, 170 insertions(+), 2 deletions(-)

diff --git a/doc/src/sgml/advanced.sgml b/doc/src/sgml/advanced.sgml
index 755c9f1485..cf18dd887e 100644
--- a/doc/src/sgml/advanced.sgml
+++ b/doc/src/sgml/advanced.sgml
@@ -537,6 +537,86 @@ WHERE pos &lt; 3;
     <literal>rank</literal> less than 3.
    </para>
 
+   <para>
+    Row pattern common syntax can be used to perform row pattern recognition
+    in a query. Row pattern common syntax includes two sub
+    clauses: <literal>DEFINE</literal>
+    and <literal>PATTERN</literal>. <literal>DEFINE</literal> defines
+    definition variables along with an expression. The expression must be a
+    logical expression, which means it must
+    return <literal>TRUE</literal>, <literal>FALSE</literal>
+    or <literal>NULL</literal>. The expression may comprise column references
+    and functions. Window functions, aggregate functions and subqueries are
+    not allowed. An example of <literal>DEFINE</literal> is as follows.
+
+<programlisting>
+DEFINE
+ LOWPRICE AS price &lt;= 100,
+ UP AS price &gt; PREV(price),
+ DOWN AS price &lt; PREV(price)
+</programlisting>
+
+    Note that <function>PREV</function> returns the price column in the
+    previous row if it's called in a context of row pattern recognition. So in
+    the second line the definition variable "UP" is <literal>TRUE</literal>
+    when the price column in the current row is greater than the price column
+    in the previous row. Likewise, "DOWN" is <literal>TRUE</literal> when when
+    the price column in the current row is lower than the price column in the
+    previous row.
+   </para>
+   <para>
+    Once <literal>DEFINE</literal> exists, <literal>PATTERN</literal> can be
+    used. <literal>PATTERN</literal> defines a sequence of rows that satisfies
+    certain conditions.  For example following <literal>PATTERN</literal>
+    defines that a row starts with the condition "LOWPRICE", then one or more
+    rows satisfy "UP" and finally one or more rows satisfy "DOWN". Note that
+    "+" means one or more matches. Also you can use "*", which means zero or
+    more matches. If a sequence of rows which satisfies the PATTERN is found,
+    in the starting row of the sequence of rows all window functions and
+    aggregates are shown in the target list. Note that aggregations only look
+    into the matched rows, rather than whole frame. In the second or
+    subsequent rows all window functions and aggregates are NULL. For rows
+    that do not match the PATTERN, all window functions and aggregates are
+    shown AS NULL too, except count which shows 0. This is because the
+    unmatched rows are in an empty frame. Example of
+    a <literal>SELECT</literal> using the <literal>DEFINE</literal>
+    and <literal>PATTERN</literal> clause is as follows.
+
+<programlisting>
+SELECT company, tdate, price,
+ first_value(price) OVER w,
+ max(price) OVER w,
+ count(price) OVER w
+FROM stock,
+ WINDOW w AS (
+ PARTITION BY company
+ ORDER BY tdate
+ ROWS BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING
+ AFTER MATCH SKIP PAST LAST ROW
+ INITIAL
+ PATTERN (LOWPRICE UP+ DOWN+)
+ DEFINE
+  LOWPRICE AS price &lt;= 100,
+  UP AS price &gt; PREV(price),
+  DOWN AS price &lt; PREV(price)
+);
+</programlisting>
+<screen>
+ company  |   tdate    | price | first_value | max | count 
+----------+------------+-------+-------------+-----+-------
+ company1 | 2023-07-01 |   100 |         100 | 200 |     4
+ company1 | 2023-07-02 |   200 |             |     |      
+ company1 | 2023-07-03 |   150 |             |     |      
+ company1 | 2023-07-04 |   140 |             |     |      
+ company1 | 2023-07-05 |   150 |             |     |     0
+ company1 | 2023-07-06 |    90 |          90 | 130 |     4
+ company1 | 2023-07-07 |   110 |             |     |      
+ company1 | 2023-07-08 |   130 |             |     |      
+ company1 | 2023-07-09 |   120 |             |     |      
+ company1 | 2023-07-10 |   130 |             |     |     0
+</screen>
+   </para>
+
    <para>
     When a query involves multiple window functions, it is possible to write
     out each one with a separate <literal>OVER</literal> clause, but this is
diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 20da3ed033..8a18e0ee23 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -21935,6 +21935,7 @@ SELECT count(*) FROM sometable;
         returns <literal>NULL</literal> if there is no such row.
        </para></entry>
       </row>
+
      </tbody>
     </tgroup>
    </table>
@@ -21974,6 +21975,59 @@ SELECT count(*) FROM sometable;
    Other frame specifications can be used to obtain other effects.
   </para>
 
+  <para>
+   Row pattern recognition navigation functions are listed in
+   <xref linkend="functions-rpr-navigation-table"/>.  These functions
+   can be used to describe DEFINE clause of Row pattern recognition.
+  </para>
+
+   <table id="functions-rpr-navigation-table">
+    <title>Row Pattern Navigation Functions</title>
+    <tgroup cols="1">
+     <thead>
+      <row>
+       <entry role="func_table_entry"><para role="func_signature">
+        Function
+       </para>
+       <para>
+        Description
+       </para></entry>
+      </row>
+     </thead>
+
+     <tbody>
+      <row>
+       <entry role="func_table_entry"><para role="func_signature">
+        <indexterm>
+         <primary>prev</primary>
+        </indexterm>
+        <function>prev</function> ( <parameter>value</parameter> <type>anyelement</type> )
+        <returnvalue>anyelement</returnvalue>
+       </para>
+       <para>
+        Returns the column value at the previous row;
+        returns NULL if there is no previous row in the window frame.
+       </para></entry>
+      </row>
+
+      <row>
+       <entry role="func_table_entry"><para role="func_signature">
+        <indexterm>
+         <primary>next</primary>
+        </indexterm>
+        <function>next</function> ( <parameter>value</parameter> <type>anyelement</type> )
+        <returnvalue>anyelement</returnvalue>
+       </para>
+       <para>
+        Returns the column value at the next row;
+        returns NULL if there is no next row in the window frame.
+       </para></entry>
+      </row>
+
+     </tbody>
+    </tgroup>
+   </table>
+
   <note>
    <para>
     The SQL standard defines a <literal>RESPECT NULLS</literal> or
diff --git a/doc/src/sgml/ref/select.sgml b/doc/src/sgml/ref/select.sgml
index 227ba1993b..dabaca9127 100644
--- a/doc/src/sgml/ref/select.sgml
+++ b/doc/src/sgml/ref/select.sgml
@@ -969,8 +969,8 @@ WINDOW <replaceable class="parameter">window_name</replaceable> AS ( <replaceabl
     The <replaceable class="parameter">frame_clause</replaceable> can be one of
 
 <synopsis>
-{ RANGE | ROWS | GROUPS } <replaceable>frame_start</replaceable> [ <replaceable>frame_exclusion</replaceable> ]
-{ RANGE | ROWS | GROUPS } BETWEEN <replaceable>frame_start</replaceable> AND <replaceable>frame_end</replaceable> [ <replaceable>frame_exclusion</replaceable> ]
+{ RANGE | ROWS | GROUPS } <replaceable>frame_start</replaceable> [ <replaceable>frame_exclusion</replaceable> ] [row_pattern_common_syntax]
+{ RANGE | ROWS | GROUPS } BETWEEN <replaceable>frame_start</replaceable> AND <replaceable>frame_end</replaceable> [ <replaceable>frame_exclusion</replaceable> ] [row_pattern_common_syntax]
 </synopsis>
 
     where <replaceable>frame_start</replaceable>
@@ -1077,6 +1077,40 @@ EXCLUDE NO OTHERS
     a given peer group will be in the frame or excluded from it.
    </para>
 
+   <para>
+    The
+    optional <replaceable class="parameter">row_pattern_common_syntax</replaceable>
+    defines the <firstterm>row pattern recognition condition</firstterm> for
+    this
+    window. <replaceable class="parameter">row_pattern_common_syntax</replaceable>
+    includes following subclauses. <literal>AFTER MATCH SKIP PAST LAST
+    ROW</literal> or <literal>AFTER MATCH SKIP TO NEXT ROW</literal> controls
+    how to proceed to next row position after a match
+    found. With <literal>AFTER MATCH SKIP PAST LAST ROW</literal> (the
+    default) next row position is next to the last row of previous match. On
+    the other hand, with <literal>AFTER MATCH SKIP TO NEXT ROW</literal> next
+    row position is always next to the last row of previous
+    match. <literal>DEFINE</literal> defines definition variables along with a
+    boolean expression. <literal>PATTERN</literal> defines a sequence of rows
+    that satisfies certain conditions using variables defined
+    in <literal>DEFINE</literal> clause. If the variable is not defined in
+    the <literal>DEFINE</literal> clause, it is implicitly assumed
+    following is defined in the <literal>DEFINE</literal> clause.
+
+<synopsis>
+<literal>variable_name</literal> AS TRUE
+</synopsis>
+
+    Note that the maximu number of variables defined
+    in <literal>DEFINE</literal> clause is 26.
+
+<synopsis>
+[ AFTER MATCH SKIP PAST LAST ROW | AFTER MATCH SKIP TO NEXT ROW ]
+PATTERN <replaceable class="parameter">pattern_variable_name</replaceable>[+] [, ...]
+DEFINE <replaceable class="parameter">definition_varible_name</replaceable> AS <replaceable class="parameter">expression</replaceable> [, ...]
+</synopsis>
+   </para>
+
    <para>
     The purpose of a <literal>WINDOW</literal> clause is to specify the
     behavior of <firstterm>window functions</firstterm> appearing in the query's
-- 
2.25.1


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2020-11-01 19:46 [PATCH v12 5/5] More refactoring Justin Pryzby <pryzbyj@telsasoft.com>
2020-11-01 19:46 [PATCH v12 5/5] More refactoring Justin Pryzby <pryzbyj@telsasoft.com>
2020-11-01 19:46 [PATCH v13 06/18] More refactoring Justin Pryzby <pryzbyj@telsasoft.com>
2020-11-01 19:46 [PATCH v13 06/18] More refactoring Justin Pryzby <pryzbyj@telsasoft.com>
2020-11-01 19:46 [PATCH v13 06/18] More refactoring Justin Pryzby <pryzbyj@telsasoft.com>
2020-11-01 19:46 [PATCH v13 06/18] More refactoring Justin Pryzby <pryzbyj@telsasoft.com>
2020-11-01 19:46 [PATCH v12 5/5] More refactoring Justin Pryzby <pryzbyj@telsasoft.com>
2020-11-01 19:46 [PATCH v13 06/18] More refactoring Justin Pryzby <pryzbyj@telsasoft.com>
2020-11-01 19:46 [PATCH v13 06/18] More refactoring Justin Pryzby <pryzbyj@telsasoft.com>
2020-11-01 19:46 [PATCH v13 06/18] More refactoring Justin Pryzby <pryzbyj@telsasoft.com>
2020-11-01 19:46 [PATCH v12 5/5] More refactoring Justin Pryzby <pryzbyj@telsasoft.com>
2020-11-01 19:46 [PATCH v12 5/5] More refactoring Justin Pryzby <pryzbyj@telsasoft.com>
2020-11-01 19:46 [PATCH v13 06/18] More refactoring Justin Pryzby <pryzbyj@telsasoft.com>
2020-11-01 19:46 [PATCH v12 5/5] More refactoring Justin Pryzby <pryzbyj@telsasoft.com>
2020-11-01 19:46 [PATCH v13 06/18] More refactoring Justin Pryzby <pryzbyj@telsasoft.com>
2020-11-01 19:46 [PATCH v13 06/18] More refactoring Justin Pryzby <pryzbyj@telsasoft.com>
2020-11-01 19:46 [PATCH v13 06/18] More refactoring Justin Pryzby <pryzbyj@telsasoft.com>
2020-11-01 19:46 [PATCH v13 06/18] More refactoring Justin Pryzby <pryzbyj@telsasoft.com>
2020-11-01 19:46 [PATCH v12 5/5] More refactoring Justin Pryzby <pryzbyj@telsasoft.com>
2020-11-01 19:46 [PATCH v13 06/18] More refactoring Justin Pryzby <pryzbyj@telsasoft.com>
2020-11-01 19:46 [PATCH v13 06/18] More refactoring Justin Pryzby <pryzbyj@telsasoft.com>
2020-11-01 19:46 [PATCH v12 5/5] More refactoring Justin Pryzby <pryzbyj@telsasoft.com>
2020-11-01 19:46 [PATCH v12 5/5] More refactoring Justin Pryzby <pryzbyj@telsasoft.com>
2020-11-01 19:46 [PATCH v12 5/5] More refactoring Justin Pryzby <pryzbyj@telsasoft.com>
2020-11-01 19:46 [PATCH v12 5/5] More refactoring Justin Pryzby <pryzbyj@telsasoft.com>
2020-11-01 19:46 [PATCH v13 06/18] More refactoring Justin Pryzby <pryzbyj@telsasoft.com>
2020-11-01 19:46 [PATCH v13 06/18] More refactoring Justin Pryzby <pryzbyj@telsasoft.com>
2020-11-01 19:46 [PATCH v13 06/18] More refactoring Justin Pryzby <pryzbyj@telsasoft.com>
2020-11-01 19:46 [PATCH v12 5/5] More refactoring Justin Pryzby <pryzbyj@telsasoft.com>
2020-11-01 19:46 [PATCH v12 5/5] More refactoring Justin Pryzby <pryzbyj@telsasoft.com>
2020-11-01 19:46 [PATCH v13 06/18] More refactoring Justin Pryzby <pryzbyj@telsasoft.com>
2020-11-01 19:46 [PATCH v12 5/5] More refactoring Justin Pryzby <pryzbyj@telsasoft.com>
2020-11-01 19:46 [PATCH v13 06/18] More refactoring Justin Pryzby <pryzbyj@telsasoft.com>
2020-11-01 19:46 [PATCH v13 06/18] More refactoring Justin Pryzby <pryzbyj@telsasoft.com>
2020-11-01 19:46 [PATCH v12 5/5] More refactoring Justin Pryzby <pryzbyj@telsasoft.com>
2020-11-01 19:46 [PATCH v12 5/5] More refactoring Justin Pryzby <pryzbyj@telsasoft.com>
2020-11-01 19:46 [PATCH v13 06/18] More refactoring Justin Pryzby <pryzbyj@telsasoft.com>
2020-11-01 19:46 [PATCH v12 5/5] More refactoring Justin Pryzby <pryzbyj@telsasoft.com>
2020-11-01 19:46 [PATCH v12 5/5] More refactoring Justin Pryzby <pryzbyj@telsasoft.com>
2020-11-01 19:46 [PATCH v12 5/5] More refactoring Justin Pryzby <pryzbyj@telsasoft.com>
2020-11-01 19:46 [PATCH v13 06/18] More refactoring Justin Pryzby <pryzbyj@telsasoft.com>
2020-11-01 19:46 [PATCH v12 5/5] More refactoring Justin Pryzby <pryzbyj@telsasoft.com>
2023-12-04 11:23 [PATCH v12 5/7] Row pattern recognition patch (docs). Tatsuo Ishii <ishii@postgresql.org>

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