Add missing invocations to object access hooks

The following commands have been missing calls to object access hooks
InvokeObjectPost{Create|Alter}Hook normally applied to all commands:
- ALTER RULE RENAME TO
- ALTER USER MAPPING
- CREATE ACCESS METHOD
- CREATE STATISTICS

Thanks also to Robert Haas for the discussion.

Author: Mark Dilger
Reviewed-by: Álvaro Herrera, Michael Paquier
Discussion: https://postgr.es/m/435CD295-F409-44E0-91EC-DF32C7AFCD76@enterprisedb.com

src/backend/commands/amcmds.c

@@ -18,6 +18,7 @@
 #include "catalog/catalog.h"
 #include "catalog/dependency.h"
 #include "catalog/indexing.h"
+#include "catalog/objectaccess.h"
 #include "catalog/pg_am.h"
 #include "catalog/pg_proc.h"
 #include "catalog/pg_type.h"
@@ -107,6 +108,8 @@ CreateAccessMethod(CreateAmStmt *stmt)
 
 	recordDependencyOnCurrentExtension(&myself, false);
 
+	InvokeObjectPostCreateHook(AccessMethodRelationId, amoid, 0);
+
 	table_close(rel, RowExclusiveLock);
 
 	return myself;

src/backend/commands/foreigncmds.c

@@ -1343,6 +1343,9 @@ AlterUserMapping(AlterUserMappingStmt *stmt)
 
 	CatalogTupleUpdate(rel, &tp->t_self, tp);
 
+	InvokeObjectPostAlterHook(UserMappingRelationId,
+							  umId, 0);
+
 	ObjectAddressSet(address, UserMappingRelationId, umId);
 
 	heap_freetuple(tp);

src/backend/commands/statscmds.c

@@ -374,6 +374,8 @@ CreateStatistics(CreateStatsStmt *stmt)
 
 	relation_close(datarel, RowExclusiveLock);
 
+	InvokeObjectPostCreateHook(StatisticExtRelationId, statoid, 0);
+
 	/*
 	 * Invalidate relcache so that others see the new statistics object.
 	 */

src/backend/rewrite/rewriteDefine.c

@@ -1003,6 +1003,8 @@ RenameRewriteRule(RangeVar *relation, const char *oldName,
 
 	CatalogTupleUpdate(pg_rewrite_desc, &ruletup->t_self, ruletup);
 
+	InvokeObjectPostAlterHook(RewriteRelationId, ruleOid, 0);
+
 	heap_freetuple(ruletup);
 	table_close(pg_rewrite_desc, RowExclusiveLock);