pg_class has a relnamespace column. You can create and access tables

in schemas other than the system namespace; however, there's no search path yet, and not all operations work yet on tables outside the system namespace.
2025-11-09 06:21:09 +03:00 · 2002-03-26 19:17:02 +00:00
parent da631e931f
commit 1dbf8aa7a8
54 changed files with 1070 additions and 816 deletions
--- a/src/backend/commands/cluster.c
+++ b/src/backend/commands/cluster.c
@@ -15,7 +15,7 @@
 *
 *
 * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/commands/cluster.c,v 1.72 2002/02/19 20:11:12 tgl Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/commands/cluster.c,v 1.73 2002/03/26 19:15:35 tgl Exp $
 *
 *-------------------------------------------------------------------------
 */
@@ -38,7 +38,8 @@


 static Oid	copy_heap(Oid OIDOldHeap, char *NewName, bool istemp);
-static void copy_index(Oid OIDOldIndex, Oid OIDNewHeap, char *NewIndexName);
+static void copy_index(Oid OIDOldIndex, Oid OIDNewHeap, char *NewIndexName,
+					   bool istemp);
 static void rebuildheap(Oid OIDNewHeap, Oid OIDOldHeap, Oid OIDOldIndex);

 /*
@@ -54,7 +55,7 @@ static void rebuildheap(Oid OIDNewHeap, Oid OIDOldHeap, Oid OIDOldIndex);
 *	 hand, re-creating n indexes may blow out the space.
 */
 void
-cluster(char *oldrelname, char *oldindexname)
+cluster(RangeVar *oldrelation, char *oldindexname)
 {
 	Oid			OIDOldHeap,
 				OIDOldIndex,
@@ -64,34 +65,40 @@ cluster(char *oldrelname, char *oldindexname)
 	bool		istemp;
 	char		NewHeapName[NAMEDATALEN];
 	char		NewIndexName[NAMEDATALEN];
-	char		saveoldrelname[NAMEDATALEN];
-	char		saveoldindexname[NAMEDATALEN];
+	RangeVar   *saveoldrelation;
+	RangeVar   *saveoldindex;
+	RangeVar   *NewHeap;
+	RangeVar   *NewIndex;

 	/*
-	 * Copy the arguments into local storage, just to be safe.
+	 * FIXME SCHEMAS: The old code had the comment:
+	 * "Copy the arguments into local storage, just to be safe."
+	 * By using copyObject we are not using local storage.
+	 * Was that really necessary?
 	 */
-	StrNCpy(saveoldrelname, oldrelname, NAMEDATALEN);
-	StrNCpy(saveoldindexname, oldindexname, NAMEDATALEN);
+	saveoldrelation = copyObject(oldrelation);
+	saveoldindex = copyObject(oldrelation);
+	saveoldindex->relname = pstrdup(oldindexname);

 	/*
 	 * We grab exclusive access to the target rel and index for the
 	 * duration of the transaction.
 	 */
-	OldHeap = heap_openr(saveoldrelname, AccessExclusiveLock);
+	OldHeap = heap_openrv(saveoldrelation, AccessExclusiveLock);
 	OIDOldHeap = RelationGetRelid(OldHeap);

-	OldIndex = index_openr(saveoldindexname);
+	OldIndex = index_openrv(saveoldindex);
 	LockRelation(OldIndex, AccessExclusiveLock);
 	OIDOldIndex = RelationGetRelid(OldIndex);

-	istemp = is_temp_rel_name(saveoldrelname);
+	istemp = is_temp_rel_name(saveoldrelation->relname);

 	/*
 	 * Check that index is in fact an index on the given relation
 	 */
 	if (OldIndex->rd_index->indrelid != OIDOldHeap)
 		elog(ERROR, "CLUSTER: \"%s\" is not an index for table \"%s\"",
-			 saveoldindexname, saveoldrelname);
+			 saveoldindex->relname, saveoldrelation->relname);

 	/* Drop relcache refcnts, but do NOT give up the locks */
 	heap_close(OldHeap, NoLock);
@@ -117,21 +124,26 @@ cluster(char *oldrelname, char *oldindexname)
 	/* Create new index over the tuples of the new heap. */
 	snprintf(NewIndexName, NAMEDATALEN, "temp_%u", OIDOldIndex);

-	copy_index(OIDOldIndex, OIDNewHeap, NewIndexName);
+	copy_index(OIDOldIndex, OIDNewHeap, NewIndexName, istemp);

 	CommandCounterIncrement();

 	/* Destroy old heap (along with its index) and rename new. */
-	heap_drop_with_catalog(saveoldrelname, allowSystemTableMods);
+	heap_drop_with_catalog(saveoldrelation->relname, allowSystemTableMods);

 	CommandCounterIncrement();

-	renamerel(NewHeapName, saveoldrelname);
+	NewHeap = copyObject(saveoldrelation);
+	NewHeap->relname = NewHeapName;
+	NewIndex = copyObject(saveoldindex);
+	NewIndex->relname = NewIndexName;
+	
+	renamerel(NewHeap, saveoldrelation->relname);

 	/* This one might be unnecessary, but let's be safe. */
 	CommandCounterIncrement();

-	renamerel(NewIndexName, saveoldindexname);
+	renamerel(NewIndex, saveoldindex->relname);
 }

 static Oid
@@ -151,7 +163,9 @@ copy_heap(Oid OIDOldHeap, char *NewName, bool istemp)
 	 */
 	tupdesc = CreateTupleDescCopyConstr(OldHeapDesc);

-	OIDNewHeap = heap_create_with_catalog(NewName, tupdesc,
+	OIDNewHeap = heap_create_with_catalog(NewName,
+										  RelationGetNamespace(OldHeap),
+										  tupdesc,
 										  OldHeap->rd_rel->relkind,
 										  OldHeap->rd_rel->relhasoids,
 										  istemp,
@@ -168,7 +182,7 @@ copy_heap(Oid OIDOldHeap, char *NewName, bool istemp)
 	 * AlterTableCreateToastTable ends with CommandCounterIncrement(), so
 	 * that the TOAST table will be visible for insertion.
 	 */
-	AlterTableCreateToastTable(NewName, true);
+	AlterTableCreateToastTable(OIDNewHeap, true);

 	heap_close(OldHeap, NoLock);

@@ -176,7 +190,7 @@ copy_heap(Oid OIDOldHeap, char *NewName, bool istemp)
 }

 static void
-copy_index(Oid OIDOldIndex, Oid OIDNewHeap, char *NewIndexName)
+copy_index(Oid OIDOldIndex, Oid OIDNewHeap, char *NewIndexName, bool istemp)
 {
 	Relation	OldIndex,
 				NewHeap;
@@ -189,18 +203,15 @@ copy_index(Oid OIDOldIndex, Oid OIDNewHeap, char *NewIndexName)
 	 * Create a new index like the old one.  To do this I get the info
 	 * from pg_index, and add a new index with a temporary name (that will
 	 * be changed later).
-	 *
-	 * NOTE: index_create will cause the new index to be a temp relation if
-	 * its parent table is, so we don't need to do anything special for
-	 * the temp-table case here.
 	 */
 	indexInfo = BuildIndexInfo(OldIndex->rd_index);

-	index_create(RelationGetRelationName(NewHeap),
+	index_create(OIDNewHeap,
 				 NewIndexName,
 				 indexInfo,
 				 OldIndex->rd_rel->relam,
 				 OldIndex->rd_index->indclass,
+				 istemp,
 				 OldIndex->rd_index->indisprimary,
 				 allowSystemTableMods);

--- a/src/backend/commands/command.c
+++ b/src/backend/commands/command.c
@@ -8,7 +8,7 @@
 *
 *
 * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/commands/Attic/command.c,v 1.165 2002/03/22 21:34:44 tgl Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/commands/Attic/command.c,v 1.166 2002/03/26 19:15:36 tgl Exp $
 *
 * NOTES
 *	  The PerformAddAttribute() code, like most of the relation
@@ -26,6 +26,7 @@
 #include "catalog/heap.h"
 #include "catalog/index.h"
 #include "catalog/indexing.h"
+#include "catalog/namespace.h"
 #include "catalog/pg_attrdef.h"
 #include "catalog/pg_index.h"
 #include "catalog/pg_namespace.h"
@@ -34,7 +35,6 @@
 #include "catalog/pg_type.h"
 #include "commands/command.h"
 #include "commands/trigger.h"
-#include "commands/defrem.h"
 #include "executor/execdefs.h"
 #include "executor/executor.h"
 #include "miscadmin.h"
@@ -415,8 +415,8 @@ AlterTableAddColumn(const char *relationName,

 	rel = heap_openr(RelationRelationName, RowExclusiveLock);

-	reltup = SearchSysCache(RELNAME,
-							PointerGetDatum(relationName),
+	reltup = SearchSysCache(RELOID,
+							ObjectIdGetDatum(myrelid),
 							0, 0, 0);

 	if (!HeapTupleIsValid(reltup))
@@ -424,7 +424,7 @@ AlterTableAddColumn(const char *relationName,
 			 relationName);

 	if (SearchSysCacheExists(ATTNAME,
-							 ObjectIdGetDatum(reltup->t_data->t_oid),
+							 ObjectIdGetDatum(myrelid),
 							 PointerGetDatum(colDef->colname),
 							 0, 0))
 		elog(ERROR, "ALTER TABLE: column name \"%s\" already exists in table \"%s\"",
@@ -463,7 +463,7 @@ AlterTableAddColumn(const char *relationName,

 	attribute = (Form_pg_attribute) GETSTRUCT(attributeTuple);

-	attribute->attrelid = reltup->t_data->t_oid;
+	attribute->attrelid = myrelid;
 	namestrcpy(&(attribute->attname), colDef->colname);
 	attribute->atttypid = typeTuple->t_data->t_oid;
 	attribute->attstattarget = DEFAULT_ATTSTATTARGET;
@@ -532,7 +532,7 @@ AlterTableAddColumn(const char *relationName,
 	 */
 	if (colDef->constraints != NIL)
 	{
-		rel = heap_openr(relationName, AccessExclusiveLock);
+		rel = heap_open(myrelid, AccessExclusiveLock);
 		AddRelationRawConstraints(rel, NIL, colDef->constraints);
 		heap_close(rel, NoLock);
 	}
@@ -541,7 +541,7 @@ AlterTableAddColumn(const char *relationName,
 	 * Automatically create the secondary relation for TOAST if it
 	 * formerly had no such but now has toastable attributes.
 	 */
-	AlterTableCreateToastTable(relationName, true);
+	AlterTableCreateToastTable(myrelid, true);
 }


@@ -989,11 +989,7 @@ RemoveColumnReferences(Oid reloid, int attnum, bool checkonly, HeapTuple reltup)
 				}
 				else
 				{
-					htup = SearchSysCache(RELOID,
-									 ObjectIdGetDatum(index->indexrelid),
-										  0, 0, 0);
-					RemoveIndex(NameStr(((Form_pg_class) GETSTRUCT(htup))->relname));
-					ReleaseSysCache(htup);
+					index_drop(index->indexrelid);
 				}
 				break;
 			}
@@ -1066,8 +1062,8 @@ AlterTableDropColumn(const char *relationName,
 	 * lock the pg_class tuple for update
 	 */
 	rel = heap_openr(RelationRelationName, RowExclusiveLock);
-	reltup = SearchSysCache(RELNAME,
-							PointerGetDatum(relationName),
+	reltup = SearchSysCache(RELOID,
+							ObjectIdGetDatum(myrelid),
 							0, 0, 0);
 	if (!HeapTupleIsValid(reltup))
 		elog(ERROR, "ALTER TABLE: relation \"%s\" not found",
@@ -1092,7 +1088,7 @@ AlterTableDropColumn(const char *relationName,
 	 * Get the target pg_attribute tuple and make a modifiable copy
 	 */
 	tup = SearchSysCacheCopy(ATTNAME,
-							 ObjectIdGetDatum(reltup->t_data->t_oid),
+							 ObjectIdGetDatum(myrelid),
 							 PointerGetDatum(colName),
 							 0, 0);
 	if (!HeapTupleIsValid(tup))
@@ -1370,7 +1366,8 @@ AlterTableAddConstraint(char *relationName,
 					 * someone doesn't delete rows out from under us.
 					 */

-					pkrel = heap_openr(fkconstraint->pktable->relname, AccessExclusiveLock);
+					pkrel = heap_openrv(fkconstraint->pktable,
+										AccessExclusiveLock);
 					if (pkrel->rd_rel->relkind != RELKIND_RELATION)
 						elog(ERROR, "referenced table \"%s\" not a relation",
 							 fkconstraint->pktable->relname);
@@ -1557,43 +1554,48 @@ AlterTableDropConstraint(const char *relationName,
 * ALTER TABLE OWNER
 */
 void
-AlterTableOwner(const char *relationName, const char *newOwnerName)
+AlterTableOwner(const RangeVar *tgtrel, const char *newOwnerName)
 {
-	Oid relationOid;
-	Relation relation;
-	int32 newOwnerSysId;
+	Relation	rel;
+	Oid			myrelid;
+	int32		newOwnerSysId;

 	/* check that we are the superuser */
 	if (!superuser())
 		elog(ERROR, "ALTER TABLE: permission denied");

 	/* lookup the OID of the target relation */
-	relation = RelationNameGetRelation(relationName);
-	relationOid = relation->rd_id;
-	RelationClose(relation);
+	rel = relation_openrv(tgtrel, AccessExclusiveLock);
+	myrelid = RelationGetRelid(rel);
+	heap_close(rel, NoLock);	/* close rel but keep lock! */

 	/* lookup the sysid of the new owner */
 	newOwnerSysId = get_usesysid(newOwnerName);

 	/* do all the actual work */
-	AlterTableOwnerId(relationOid, newOwnerSysId);
+	AlterTableOwnerId(myrelid, newOwnerSysId);
 }

 static void
 AlterTableOwnerId(Oid relationOid, int32 newOwnerSysId)
 {
+	Relation		target_rel;
 	Relation		class_rel;
 	HeapTuple		tuple;
 	Relation		idescs[Num_pg_class_indices];
 	Form_pg_class	tuple_class;

+	/* Get exclusive lock till end of transaction on the target table */
+	target_rel = heap_open(relationOid, AccessExclusiveLock);
+
+	/* Get its pg_class tuple, too */
+	class_rel = heap_openr(RelationRelationName, RowExclusiveLock);
+
 	tuple = SearchSysCacheCopy(RELOID,
 							   ObjectIdGetDatum(relationOid),
 							   0, 0, 0);
 	if (!HeapTupleIsValid(tuple))
-		elog(ERROR, "ALTER TABLE: object ID %hd not found",
-				relationOid);
-
+		elog(ERROR, "ALTER TABLE: relation %u not found", relationOid);
 	tuple_class = (Form_pg_class) GETSTRUCT(tuple);

 	/* Can we change the ownership of this tuple? */
@@ -1603,7 +1605,6 @@ AlterTableOwnerId(Oid relationOid, int32 newOwnerSysId)
 	 * Okay, this is a valid tuple: change its ownership and
 	 * write to the heap.
 	 */
-	class_rel = heap_openr(RelationRelationName, RowExclusiveLock);
 	tuple_class->relowner = newOwnerSysId;
 	simple_heap_update(class_rel, &tuple->t_self, tuple);

@@ -1617,25 +1618,25 @@ AlterTableOwnerId(Oid relationOid, int32 newOwnerSysId)
 	 * indexes that belong to the table, as well as the table's toast
 	 * table (if it has one)
 	 */
-	if (tuple_class->relkind == RELKIND_RELATION)
+	if (tuple_class->relkind == RELKIND_RELATION ||
+		tuple_class->relkind == RELKIND_TOASTVALUE)
 	{
-		/* Search for indexes belonging to this table */
-		Relation target_rel;
 		List *index_oid_list, *i;

 		/* Find all the indexes belonging to this relation */
-		target_rel = heap_open(relationOid, RowExclusiveLock);
 		index_oid_list = RelationGetIndexList(target_rel);
-		heap_close(target_rel, RowExclusiveLock);

 		/* For each index, recursively change its ownership */
-		foreach (i, index_oid_list)
+		foreach(i, index_oid_list)
 		{
 			AlterTableOwnerId(lfirsti(i), newOwnerSysId);
 		}

 		freeList(index_oid_list);
+	}

+	if (tuple_class->relkind == RELKIND_RELATION)
+	{
 		/* If it has a toast table, recurse to change its ownership */
 		if (tuple_class->reltoastrelid != InvalidOid)
 		{
@@ -1644,7 +1645,8 @@ AlterTableOwnerId(Oid relationOid, int32 newOwnerSysId)
 	}

 	heap_freetuple(tuple);
-	heap_close(class_rel, NoLock);
+	heap_close(class_rel, RowExclusiveLock);
+	heap_close(target_rel, NoLock);
 }

 static void
@@ -1669,10 +1671,9 @@ CheckTupleType(Form_pg_class tuple_class)
 * ALTER TABLE CREATE TOAST TABLE
 */
 void
-AlterTableCreateToastTable(const char *relationName, bool silent)
+AlterTableCreateToastTable(Oid relOid, bool silent)
 {
 	Relation	rel;
-	Oid			myrelid;
 	HeapTuple	reltup;
 	HeapTupleData classtuple;
 	TupleDesc	tupdesc;
@@ -1690,14 +1691,13 @@ AlterTableCreateToastTable(const char *relationName, bool silent)
 	 * Grab an exclusive lock on the target table, which we will NOT
 	 * release until end of transaction.
 	 */
-	rel = heap_openr(relationName, AccessExclusiveLock);
-	myrelid = RelationGetRelid(rel);
+	rel = heap_open(relOid, AccessExclusiveLock);

 	if (rel->rd_rel->relkind != RELKIND_RELATION)
 		elog(ERROR, "ALTER TABLE: relation \"%s\" is not a table",
-			 relationName);
+			 RelationGetRelationName(rel));

-	if (!pg_class_ownercheck(myrelid, GetUserId()))
+	if (!pg_class_ownercheck(relOid, GetUserId()))
 		elog(ERROR, "ALTER TABLE: permission denied");

 	/*
@@ -1705,12 +1705,12 @@ AlterTableCreateToastTable(const char *relationName, bool silent)
 	 */
 	class_rel = heap_openr(RelationRelationName, RowExclusiveLock);

-	reltup = SearchSysCache(RELNAME,
-							PointerGetDatum(relationName),
+	reltup = SearchSysCache(RELOID,
+							ObjectIdGetDatum(relOid),
 							0, 0, 0);
 	if (!HeapTupleIsValid(reltup))
 		elog(ERROR, "ALTER TABLE: relation \"%s\" not found",
-			 relationName);
+			 RelationGetRelationName(rel));
 	classtuple.t_self = reltup->t_self;
 	ReleaseSysCache(reltup);

@@ -1739,7 +1739,7 @@ AlterTableCreateToastTable(const char *relationName, bool silent)
 		}

 		elog(ERROR, "ALTER TABLE: relation \"%s\" already has a toast table",
-			 relationName);
+			 RelationGetRelationName(rel));
 	}

 	/*
@@ -1756,14 +1756,14 @@ AlterTableCreateToastTable(const char *relationName, bool silent)
 		}

 		elog(ERROR, "ALTER TABLE: relation \"%s\" does not need a toast table",
-			 relationName);
+			 RelationGetRelationName(rel));
 	}

 	/*
 	 * Create the toast table and its index
 	 */
-	sprintf(toast_relname, "pg_toast_%u", myrelid);
-	sprintf(toast_idxname, "pg_toast_%u_idx", myrelid);
+	sprintf(toast_relname, "pg_toast_%u", relOid);
+	sprintf(toast_idxname, "pg_toast_%u_idx", relOid);

 	/* this is pretty painful...  need a tuple descriptor */
 	tupdesc = CreateTemplateTupleDesc(3);
@@ -1795,7 +1795,9 @@ AlterTableCreateToastTable(const char *relationName, bool silent)
 	 * collision, and the toast rel will be destroyed when its master is,
 	 * so there's no need to handle the toast rel as temp.
 	 */
-	toast_relid = heap_create_with_catalog(toast_relname, tupdesc,
+	toast_relid = heap_create_with_catalog(toast_relname,
+										   RelationGetNamespace(rel),
+										   tupdesc,
 										   RELKIND_TOASTVALUE, false,
 										   false, true);

@@ -1825,9 +1827,9 @@ AlterTableCreateToastTable(const char *relationName, bool silent)
 	classObjectId[0] = OID_BTREE_OPS_OID;
 	classObjectId[1] = INT4_BTREE_OPS_OID;

-	toast_idxid = index_create(toast_relname, toast_idxname, indexInfo,
+	toast_idxid = index_create(toast_relid, toast_idxname, indexInfo,
 							   BTREE_AM_OID, classObjectId,
-							   true, true);
+							   false, true, true);

 	/*
 	 * Update toast rel's pg_class entry to show that it has an index. The
@@ -1927,21 +1929,15 @@ LockTableCommand(LockStmt *lockstmt)
 	foreach(p, lockstmt->relations)
 	{
 		RangeVar   *relation = lfirst(p);
-		char	   *relname = relation->relname;
 		Oid			reloid;
-		int			aclresult;
+		int32		aclresult;
 		Relation	rel;

 		/*
 		 * We don't want to open the relation until we've checked privilege.
 		 * So, manually get the relation OID.
 		 */
-		reloid = GetSysCacheOid(RELNAME,
-								PointerGetDatum(relname),
-								0, 0, 0);
-		if (!OidIsValid(reloid))
-			elog(ERROR, "LOCK TABLE: relation \"%s\" does not exist",
-				 relname);
+		reloid = RangeVarGetRelid(relation, false);

 		if (lockstmt->mode == AccessShareLock)
 			aclresult = pg_class_aclcheck(reloid, GetUserId(),
@@ -1958,7 +1954,7 @@ LockTableCommand(LockStmt *lockstmt)
 		/* Currently, we only allow plain tables to be locked */
 		if (rel->rd_rel->relkind != RELKIND_RELATION)
 			elog(ERROR, "LOCK TABLE: %s is not a table",
-				 relname);
+				 relation->relname);

 		relation_close(rel, NoLock);	/* close rel, keep lock */
 	}
--- a/src/backend/commands/comment.c
+++ b/src/backend/commands/comment.c
@@ -7,7 +7,7 @@
 * Copyright (c) 1999-2001, PostgreSQL Global Development Group
 *
 * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/commands/comment.c,v 1.36 2002/03/21 23:27:20 tgl Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/commands/comment.c,v 1.37 2002/03/26 19:15:38 tgl Exp $
 *
 *-------------------------------------------------------------------------
 */
@@ -20,6 +20,7 @@
 #include "catalog/indexing.h"
 #include "catalog/pg_database.h"
 #include "catalog/pg_description.h"
+#include "catalog/pg_namespace.h"
 #include "catalog/pg_operator.h"
 #include "catalog/pg_rewrite.h"
 #include "catalog/pg_trigger.h"
@@ -48,7 +49,8 @@
 *------------------------------------------------------------------
 */

-static void CommentRelation(int objtype, char *relation, char *comment);
+static void CommentRelation(int objtype, char * schemaname, char *relation,
+							char *comment);
 static void CommentAttribute(char *relation, char *attrib, char *comment);
 static void CommentDatabase(char *database, char *comment);
 static void CommentRewrite(char *rule, char *comment);
@@ -74,7 +76,7 @@ static void CommentTrigger(char *trigger, char *relation, char *comments);
 */

 void
-CommentObject(int objtype, char *objname, char *objproperty,
+CommentObject(int objtype, char *schemaname, char *objname, char *objproperty,
 			  List *objlist, char *comment)
 {
 	switch (objtype)
@@ -83,7 +85,7 @@ CommentObject(int objtype, char *objname, char *objproperty,
 		case SEQUENCE:
 		case TABLE:
 		case VIEW:
-			CommentRelation(objtype, objname, comment);
+			CommentRelation(objtype, schemaname, objname, comment);
 			break;
 		case COLUMN:
 			CommentAttribute(objname, objproperty, comment);
@@ -323,9 +325,16 @@ DeleteComments(Oid oid, Oid classoid)
 */

 static void
-CommentRelation(int reltype, char *relname, char *comment)
+CommentRelation(int reltype, char *schemaname, char *relname, char *comment)
 {
 	Relation	relation;
+	RangeVar   *tgtrel = makeNode(RangeVar);
+	
+	
+	tgtrel->relname = relname;
+	tgtrel->schemaname = schemaname;
+	/* FIXME SCHEMA: Can we add comments to temp relations? */
+	tgtrel->istemp = false;

 	/*
 	 * Open the relation.  We do this mainly to acquire a lock that
@@ -333,7 +342,7 @@ CommentRelation(int reltype, char *relname, char *comment)
 	 * did, they'd fail to remove the entry we are about to make in
 	 * pg_description.)
 	 */
-	relation = relation_openr(relname, AccessShareLock);
+	relation = relation_openrv(tgtrel, AccessShareLock);

 	/* Check object security */
 	if (!pg_class_ownercheck(RelationGetRelid(relation), GetUserId()))
@@ -504,9 +513,7 @@ CommentRewrite(char *rule, char *comment)

 	/* pg_rewrite doesn't have a hard-coded OID, so must look it up */

-	classoid = GetSysCacheOid(RELNAME,
-							  PointerGetDatum(RewriteRelationName),
-							  0, 0, 0);
+	classoid = get_relname_relid(RewriteRelationName, PG_CATALOG_NAMESPACE);
 	Assert(OidIsValid(classoid));

 	/* Call CreateComments() to create/drop the comments */
@@ -604,9 +611,7 @@ CommentAggregate(char *aggregate, List *arguments, char *comment)

 	/* pg_aggregate doesn't have a hard-coded OID, so must look it up */

-	classoid = GetSysCacheOid(RELNAME,
-							  PointerGetDatum(AggregateRelationName),
-							  0, 0, 0);
+	classoid = get_relname_relid(AggregateRelationName, PG_CATALOG_NAMESPACE);
 	Assert(OidIsValid(classoid));

 	/* Call CreateComments() to create/drop the comments */
--- a/src/backend/commands/creatinh.c
+++ b/src/backend/commands/creatinh.c
@@ -8,7 +8,7 @@
 *
 *
 * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/commands/Attic/creatinh.c,v 1.91 2002/03/22 02:56:31 tgl Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/commands/Attic/creatinh.c,v 1.92 2002/03/26 19:15:40 tgl Exp $
 *
 *-------------------------------------------------------------------------
 */
@@ -18,9 +18,11 @@
 #include "access/heapam.h"
 #include "catalog/catalog.h"
 #include "catalog/catname.h"
-#include "catalog/indexing.h"
 #include "catalog/heap.h"
+#include "catalog/indexing.h"
+#include "catalog/namespace.h"
 #include "catalog/pg_inherits.h"
+#include "catalog/pg_namespace.h"
 #include "catalog/pg_type.h"
 #include "commands/creatinh.h"
 #include "miscadmin.h"
@@ -54,6 +56,7 @@ Oid
 DefineRelation(CreateStmt *stmt, char relkind)
 {
 	char	   *relname = palloc(NAMEDATALEN);
+	Oid			namespaceId;
 	List	   *schema = stmt->tableElts;
 	int			numberOfAttributes;
 	Oid			relationId;
@@ -73,6 +76,12 @@ DefineRelation(CreateStmt *stmt, char relkind)
 	 */
 	StrNCpy(relname, (stmt->relation)->relname, NAMEDATALEN);

+	/*
+	 * Look up the namespace in which we are supposed to create the
+	 * relation.
+	 */
+	namespaceId = RangeVarGetCreationNamespace(stmt->relation);
+
 	/*
 	 * Merge domain attributes into the known columns before processing table
 	 * inheritance.  Otherwise we risk adding double constraints to a
@@ -147,7 +156,8 @@ DefineRelation(CreateStmt *stmt, char relkind)
 		}
 	}

-	relationId = heap_create_with_catalog(relname, descriptor,
+	relationId = heap_create_with_catalog(relname, namespaceId,
+										  descriptor,
 										  relkind,
 										  stmt->hasoids || parentHasOids,
 										  stmt->relation->istemp,
@@ -330,7 +340,7 @@ MergeDomainAttributes(List *schema)
 * Input arguments:
 * 'schema' is the column/attribute definition for the table. (It's a list
 *		of ColumnDef's.) It is destructively changed.
- * 'supers' is a list of names (as Value objects) of parent relations.
+ * 'supers' is a list of names (as RangeVar nodes) of parent relations.
 * 'istemp' is TRUE if we are creating a temp relation.
 *
 * Output arguments:
@@ -417,24 +427,6 @@ MergeAttributes(List *schema, List *supers, bool istemp,
 		}
 	}

-	/*
-	 * Reject duplicate names in the list of parents, too.
-	 *
-	 * XXX needs to be smarter about schema-qualified table names.
-	 */
-	foreach(entry, supers)
-	{
-		List	   *rest;
-
-		foreach(rest, lnext(entry))
-		{
-			if (strcmp(((RangeVar *) lfirst(entry))->relname, 
-					   ((RangeVar *) lfirst(rest))->relname) == 0)
-				elog(ERROR, "CREATE TABLE: inherited relation \"%s\" duplicated",
-					 ((RangeVar *) lfirst(entry))->relname);
-		}
-	}
-
 	/*
 	 * Scan the parents left-to-right, and merge their attributes to form
 	 * a list of inherited attributes (inhSchema).	Also check to see if
@@ -443,30 +435,40 @@ MergeAttributes(List *schema, List *supers, bool istemp,
 	child_attno = 0;
 	foreach(entry, supers)
 	{
-		char	   *name = ((RangeVar *) lfirst(entry))->relname;
+		RangeVar   *parent = (RangeVar *) lfirst(entry);
 		Relation	relation;
 		TupleDesc	tupleDesc;
 		TupleConstr *constr;
 		AttrNumber *newattno;
 		AttrNumber	parent_attno;

-		relation = heap_openr(name, AccessShareLock);
+		relation = heap_openrv(parent, AccessShareLock);

 		if (relation->rd_rel->relkind != RELKIND_RELATION)
-			elog(ERROR, "CREATE TABLE: inherited relation \"%s\" is not a table", name);
+			elog(ERROR, "CREATE TABLE: inherited relation \"%s\" is not a table",
+				 parent->relname);
 		/* Permanent rels cannot inherit from temporary ones */
-		if (!istemp && is_temp_rel_name(name))
-			elog(ERROR, "CREATE TABLE: cannot inherit from temp relation \"%s\"", name);
+		if (!istemp && is_temp_rel_name(parent->relname))
+			elog(ERROR, "CREATE TABLE: cannot inherit from temp relation \"%s\"",
+				 parent->relname);

 		/*
 		 * We should have an UNDER permission flag for this, but for now,
 		 * demand that creator of a child table own the parent.
 		 */
 		if (!pg_class_ownercheck(RelationGetRelid(relation), GetUserId()))
-			elog(ERROR, "you do not own table \"%s\"", name);
+			elog(ERROR, "you do not own table \"%s\"",
+				 parent->relname);

-		parentOids = lappendi(parentOids, relation->rd_id);
-		setRelhassubclassInRelation(relation->rd_id, true);
+		/*
+		 * Reject duplications in the list of parents.
+		 */
+		if (intMember(RelationGetRelid(relation), parentOids))
+			elog(ERROR, "CREATE TABLE: inherited relation \"%s\" duplicated",
+				 parent->relname);
+
+		parentOids = lappendi(parentOids, RelationGetRelid(relation));
+		setRelhassubclassInRelation(RelationGetRelid(relation), true);

 		parentHasOids |= relation->rd_rel->relhasoids;

--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -8,7 +8,7 @@
 *
 *
 * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/commands/indexcmds.c,v 1.64 2002/03/20 19:43:47 tgl Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/commands/indexcmds.c,v 1.65 2002/03/26 19:15:41 tgl Exp $
 *
 *-------------------------------------------------------------------------
 */
@@ -18,8 +18,8 @@
 #include "access/heapam.h"
 #include "catalog/catalog.h"
 #include "catalog/catname.h"
-#include "catalog/heap.h"
 #include "catalog/index.h"
+#include "catalog/namespace.h"
 #include "catalog/pg_opclass.h"
 #include "commands/defrem.h"
 #include "miscadmin.h"
@@ -33,6 +33,7 @@
 #include "utils/fmgroids.h"
 #include "utils/lsyscache.h"
 #include "utils/syscache.h"
+#include "utils/temprel.h"


 #define IsFuncIndex(ATTR_LIST) (((IndexElem*)lfirst(ATTR_LIST))->args != NIL)
@@ -61,7 +62,7 @@ static Oid	GetDefaultOpClass(Oid attrType, Oid accessMethodId);
 * 'rangetable' is needed to interpret the predicate.
 */
 void
-DefineIndex(char *heapRelationName,
+DefineIndex(RangeVar *heapRelation,
 			char *indexRelationName,
 			char *accessMethodName,
 			List *attributeList,
@@ -73,6 +74,7 @@ DefineIndex(char *heapRelationName,
 	Oid		   *classObjectId;
 	Oid			accessMethodId;
 	Oid			relationId;
+	bool		istemp = is_temp_rel_name(heapRelation->relname);
 	Relation	rel;
 	HeapTuple	tuple;
 	Form_pg_am	accessMethodForm;
@@ -93,20 +95,20 @@ DefineIndex(char *heapRelationName,
 	/*
 	 * Open heap relation, acquire a suitable lock on it, remember its OID
 	 */
-	rel = heap_openr(heapRelationName, ShareLock);
+	rel = heap_openrv(heapRelation, ShareLock);

 	/* Note: during bootstrap may see uncataloged relation */
 	if (rel->rd_rel->relkind != RELKIND_RELATION &&
 		rel->rd_rel->relkind != RELKIND_UNCATALOGED)
 		elog(ERROR, "DefineIndex: relation \"%s\" is not a table",
-			 heapRelationName);
+			 heapRelation->relname);

 	relationId = RelationGetRelid(rel);

 	heap_close(rel, NoLock);

 	if (!IsBootstrapProcessingMode() &&
-		IsSystemRelationName(heapRelationName) &&
+		IsSystemRelationName(heapRelation->relname) &&
 		!IndexesAreActive(relationId, false))
 		elog(ERROR, "Existing indexes are inactive. REINDEX first");

@@ -187,9 +189,9 @@ DefineIndex(char *heapRelationName,
 					   relationId, accessMethodName, accessMethodId);
 	}

-	index_create(heapRelationName, indexRelationName,
+	index_create(relationId, indexRelationName,
 				 indexInfo, accessMethodId, classObjectId,
-				 primary, allowSystemTableMods);
+				 istemp, primary, allowSystemTableMods);

 	/*
 	 * We update the relation's pg_class tuple even if it already has
@@ -500,23 +502,25 @@ GetDefaultOpClass(Oid attrType, Oid accessMethodId)
 *		...
 */
 void
-RemoveIndex(char *name)
+RemoveIndex(RangeVar *relation)
 {
+	Oid			indOid;
 	HeapTuple	tuple;

-	tuple = SearchSysCache(RELNAME,
-						   PointerGetDatum(name),
+	indOid = RangeVarGetRelid(relation, false);
+	tuple = SearchSysCache(RELOID,
+						   ObjectIdGetDatum(indOid),
 						   0, 0, 0);
 	if (!HeapTupleIsValid(tuple))
-		elog(ERROR, "index \"%s\" does not exist", name);
+		elog(ERROR, "index \"%s\" does not exist", relation->relname);

 	if (((Form_pg_class) GETSTRUCT(tuple))->relkind != RELKIND_INDEX)
 		elog(ERROR, "relation \"%s\" is of type \"%c\"",
-			 name, ((Form_pg_class) GETSTRUCT(tuple))->relkind);
-
-	index_drop(tuple->t_data->t_oid);
+			 relation->relname, ((Form_pg_class) GETSTRUCT(tuple))->relkind);

 	ReleaseSysCache(tuple);
+
+	index_drop(indOid);
 }

 /*
@@ -528,8 +532,9 @@ RemoveIndex(char *name)
 *		...
 */
 void
-ReindexIndex(const char *name, bool force /* currently unused */ )
+ReindexIndex(RangeVar *indexRelation, bool force /* currently unused */ )
 {
+	Oid			indOid;
 	HeapTuple	tuple;
 	bool		overwrite = false;

@@ -541,22 +546,24 @@ ReindexIndex(const char *name, bool force /* currently unused */ )
 	if (IsTransactionBlock())
 		elog(ERROR, "REINDEX cannot run inside a BEGIN/END block");

-	tuple = SearchSysCache(RELNAME,
-						   PointerGetDatum(name),
+	indOid = RangeVarGetRelid(indexRelation, false);
+	tuple = SearchSysCache(RELOID,
+						   ObjectIdGetDatum(indOid),
 						   0, 0, 0);
 	if (!HeapTupleIsValid(tuple))
-		elog(ERROR, "index \"%s\" does not exist", name);
+		elog(ERROR, "index \"%s\" does not exist", indexRelation->relname);

 	if (((Form_pg_class) GETSTRUCT(tuple))->relkind != RELKIND_INDEX)
 		elog(ERROR, "relation \"%s\" is of type \"%c\"",
-			 name, ((Form_pg_class) GETSTRUCT(tuple))->relkind);
+			 indexRelation->relname,
+			 ((Form_pg_class) GETSTRUCT(tuple))->relkind);
+
+	ReleaseSysCache(tuple);

 	if (IsIgnoringSystemIndexes())
 		overwrite = true;
-	if (!reindex_index(tuple->t_data->t_oid, force, overwrite))
-		elog(WARNING, "index \"%s\" wasn't reindexed", name);
-
-	ReleaseSysCache(tuple);
+	if (!reindex_index(indOid, force, overwrite))
+		elog(WARNING, "index \"%s\" wasn't reindexed", indexRelation->relname);
 }

 /*
@@ -568,8 +575,9 @@ ReindexIndex(const char *name, bool force /* currently unused */ )
 *		...
 */
 void
-ReindexTable(const char *name, bool force)
+ReindexTable(RangeVar *relation, bool force)
 {
+	Oid			heapOid;
 	HeapTuple	tuple;

 	/*
@@ -580,20 +588,22 @@ ReindexTable(const char *name, bool force)
 	if (IsTransactionBlock())
 		elog(ERROR, "REINDEX cannot run inside a BEGIN/END block");

-	tuple = SearchSysCache(RELNAME,
-						   PointerGetDatum(name),
+	heapOid = RangeVarGetRelid(relation, false);
+	tuple = SearchSysCache(RELOID,
+						   ObjectIdGetDatum(heapOid),
 						   0, 0, 0);
 	if (!HeapTupleIsValid(tuple))
-		elog(ERROR, "table \"%s\" does not exist", name);
+		elog(ERROR, "table \"%s\" does not exist", relation->relname);

 	if (((Form_pg_class) GETSTRUCT(tuple))->relkind != RELKIND_RELATION)
 		elog(ERROR, "relation \"%s\" is of type \"%c\"",
-			 name, ((Form_pg_class) GETSTRUCT(tuple))->relkind);
-
-	if (!reindex_relation(tuple->t_data->t_oid, force))
-		elog(WARNING, "table \"%s\" wasn't reindexed", name);
+			 relation->relname,
+			 ((Form_pg_class) GETSTRUCT(tuple))->relkind);

 	ReleaseSysCache(tuple);
+
+	if (!reindex_relation(heapOid, force))
+		elog(WARNING, "table \"%s\" wasn't reindexed", relation->relname);
 }

 /*
--- a/src/backend/commands/rename.c
+++ b/src/backend/commands/rename.c
@@ -8,7 +8,7 @@
 *
 *
 * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/commands/Attic/rename.c,v 1.64 2002/03/21 23:27:21 tgl Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/commands/Attic/rename.c,v 1.65 2002/03/26 19:15:43 tgl Exp $
 *
 *-------------------------------------------------------------------------
 */
@@ -36,6 +36,7 @@
 #include "utils/acl.h"
 #include "utils/builtins.h"
 #include "utils/fmgroids.h"
+#include "utils/lsyscache.h"
 #include "utils/relcache.h"
 #include "utils/syscache.h"
 #include "utils/temprel.h"
@@ -266,19 +267,20 @@ renameatt(char *relname,
 *		renamerel		- change the name of a relation
 */
 void
-renamerel(const char *oldrelname, const char *newrelname)
+renamerel(const RangeVar *relation, const char *newrelname)
 {
 	Relation	targetrelation;
 	Relation	relrelation;	/* for RELATION relation */
 	HeapTuple	reltup;
+	Oid			namespaceId;
 	Oid			reloid;
 	char		relkind;
 	bool		relhastriggers;
 	Relation	irelations[Num_pg_class_indices];

-	if (!allowSystemTableMods && IsSystemRelationName(oldrelname))
+	if (!allowSystemTableMods && IsSystemRelationName(relation->relname))
 		elog(ERROR, "renamerel: system relation \"%s\" may not be renamed",
-			 oldrelname);
+			 relation->relname);

 	if (!allowSystemTableMods && IsSystemRelationName(newrelname))
 		elog(ERROR, "renamerel: Illegal class name: \"%s\" -- pg_ is reserved for system catalogs",
@@ -288,15 +290,16 @@ renamerel(const char *oldrelname, const char *newrelname)
 	 * Check for renaming a temp table, which only requires altering the
 	 * temp-table mapping, not the underlying table.
 	 */
-	if (rename_temp_relation(oldrelname, newrelname))
+	if (rename_temp_relation(relation->relname, newrelname))
 		return;					/* all done... */

 	/*
 	 * Grab an exclusive lock on the target table or index, which we will
 	 * NOT release until end of transaction.
 	 */
-	targetrelation = relation_openr(oldrelname, AccessExclusiveLock);
+	targetrelation = relation_openrv(relation, AccessExclusiveLock);

+	namespaceId = RelationGetNamespace(targetrelation);
 	reloid = RelationGetRelid(targetrelation);
 	relkind = targetrelation->rd_rel->relkind;
 	relhastriggers = (targetrelation->rd_rel->reltriggers > 0);
@@ -323,13 +326,14 @@ renamerel(const char *oldrelname, const char *newrelname)
 	 */
 	relrelation = heap_openr(RelationRelationName, RowExclusiveLock);

-	reltup = SearchSysCacheCopy(RELNAME,
-								PointerGetDatum(oldrelname),
+	reltup = SearchSysCacheCopy(RELOID,
+								PointerGetDatum(reloid),
 								0, 0, 0);
 	if (!HeapTupleIsValid(reltup))
-		elog(ERROR, "renamerel: relation \"%s\" does not exist", oldrelname);
+		elog(ERROR, "renamerel: relation \"%s\" does not exist",
+			 relation->relname);

-	if (RelnameFindRelid(newrelname) != InvalidOid)
+	if (get_relname_relid(newrelname, namespaceId) != InvalidOid)
 		elog(ERROR, "renamerel: relation \"%s\" exists", newrelname);

 	/*
@@ -352,7 +356,7 @@ renamerel(const char *oldrelname, const char *newrelname)
 	 * Also rename the associated type, if any.
 	 */
 	if (relkind != RELKIND_INDEX)
-		TypeRename(oldrelname, newrelname);
+		TypeRename(relation->relname, newrelname);

 	/*
 	 * If it's a view, must also rename the associated ON SELECT rule.
@@ -362,7 +366,7 @@ renamerel(const char *oldrelname, const char *newrelname)
 		char	   *oldrulename,
 				   *newrulename;

-		oldrulename = MakeRetrieveViewRuleName(oldrelname);
+		oldrulename = MakeRetrieveViewRuleName(relation->relname);
 		newrulename = MakeRetrieveViewRuleName(newrelname);
 		RenameRewriteRule(oldrulename, newrulename);
 	}
@@ -374,11 +378,11 @@ renamerel(const char *oldrelname, const char *newrelname)
 	{
 		/* update tgargs where relname is primary key */
 		update_ri_trigger_args(reloid,
-							   oldrelname, newrelname,
+							   relation->relname, newrelname,
 							   false, true);
 		/* update tgargs where relname is foreign key */
 		update_ri_trigger_args(reloid,
-							   oldrelname, newrelname,
+							   relation->relname, newrelname,
 							   true, true);
 	}
 }
--- a/src/backend/commands/trigger.c
+++ b/src/backend/commands/trigger.c
@@ -7,7 +7,7 @@
 * Portions Copyright (c) 1994, Regents of the University of California
 *
 * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/commands/trigger.c,v 1.107 2002/03/21 23:27:22 tgl Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/commands/trigger.c,v 1.108 2002/03/26 19:15:45 tgl Exp $
 *
 *-------------------------------------------------------------------------
 */
@@ -71,7 +71,7 @@ CreateTrigger(CreateTrigStmt *stmt)
 	char	   *constrname = "";
 	Oid			constrrelid = InvalidOid;

-	rel = heap_openr(stmt->relation->relname, AccessExclusiveLock);
+	rel = heap_openrv(stmt->relation, AccessExclusiveLock);

 	if (rel->rd_rel->relkind != RELKIND_RELATION)
 		elog(ERROR, "CreateTrigger: relation \"%s\" is not a table",
@@ -106,7 +106,7 @@ CreateTrigger(CreateTrigStmt *stmt)
 			 */
 			Relation	conrel;

-			conrel = heap_openr(stmt->constrrel->relname, NoLock);
+			conrel = heap_openrv(stmt->constrrel, NoLock);
 			constrrelid = conrel->rd_id;
 			heap_close(conrel, NoLock);
 		}
@@ -285,8 +285,8 @@ CreateTrigger(CreateTrigStmt *stmt)
 	 * rebuild relcache entries.
 	 */
 	pgrel = heap_openr(RelationRelationName, RowExclusiveLock);
-	tuple = SearchSysCacheCopy(RELNAME,
-							   PointerGetDatum(stmt->relation->relname),
+	tuple = SearchSysCacheCopy(RELOID,
+							   ObjectIdGetDatum(RelationGetRelid(rel)),
 							   0, 0, 0);
 	if (!HeapTupleIsValid(tuple))
 		elog(ERROR, "CreateTrigger: relation %s not found in pg_class",
@@ -323,7 +323,7 @@ DropTrigger(DropTrigStmt *stmt)
 	int			found = 0;
 	int			tgfound = 0;

-	rel = heap_openr(stmt->relation->relname, AccessExclusiveLock);
+	rel = heap_openrv(stmt->relation, AccessExclusiveLock);

 	if (rel->rd_rel->relkind != RELKIND_RELATION)
 		elog(ERROR, "DropTrigger: relation \"%s\" is not a table",
@@ -380,8 +380,8 @@ DropTrigger(DropTrigStmt *stmt)
 	 * rebuild relcache entries.
 	 */
 	pgrel = heap_openr(RelationRelationName, RowExclusiveLock);
-	tuple = SearchSysCacheCopy(RELNAME,
-							   PointerGetDatum(stmt->relation->relname),
+	tuple = SearchSysCacheCopy(RELOID,
+							   ObjectIdGetDatum(RelationGetRelid(rel)),
 							   0, 0, 0);
 	if (!HeapTupleIsValid(tuple))
 		elog(ERROR, "DropTrigger: relation %s not found in pg_class",
@@ -452,7 +452,7 @@ RelationRemoveTriggers(Relation rel)

 		pgrel = heap_openr(RelationRelationName, RowExclusiveLock);
 		tup = SearchSysCacheCopy(RELOID,
-								 RelationGetRelid(rel),
+								 ObjectIdGetDatum(RelationGetRelid(rel)),
 								 0, 0, 0);
 		if (!HeapTupleIsValid(tup))
 			elog(ERROR, "RelationRemoveTriggers: relation %u not found in pg_class",
--- a/src/backend/commands/user.c
+++ b/src/backend/commands/user.c
@@ -6,7 +6,7 @@
 * Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
 * Portions Copyright (c) 1994, Regents of the University of California
 *
- * $Header: /cvsroot/pgsql/src/backend/commands/user.c,v 1.93 2002/03/06 06:09:37 momjian Exp $
+ * $Header: /cvsroot/pgsql/src/backend/commands/user.c,v 1.94 2002/03/26 19:15:48 tgl Exp $
 *
 *-------------------------------------------------------------------------
 */
@@ -919,12 +919,12 @@ DropUser(DropUserStmt *stmt)
 * check to see if there is an ACL on pg_shadow
 */
 static void
-CheckPgUserAclNotNull()
+CheckPgUserAclNotNull(void)
 {
 	HeapTuple	htup;

-	htup = SearchSysCache(RELNAME,
-						  PointerGetDatum(ShadowRelationName),
+	htup = SearchSysCache(RELOID,
+						  ObjectIdGetDatum(RelOid_pg_shadow),
 						  0, 0, 0);
 	if (!HeapTupleIsValid(htup))
 		elog(ERROR, "CheckPgUserAclNotNull: \"%s\" not found",