diff --git a/src/backend/commands/tablecmds.c b/src/backend/commands/tablecmds.c
index c651047711..f3d64c6a9e 100644
--- a/src/backend/commands/tablecmds.c
+++ b/src/backend/commands/tablecmds.c
@@ -302,7 +302,6 @@ struct DropRelationCallbackState
 	((child_is_partition) ? DEPENDENCY_AUTO : DEPENDENCY_NORMAL)
 
 static void truncate_check_rel(Oid relid, Form_pg_class reltuple);
-static void truncate_check_perms(Oid relid, Form_pg_class reltuple);
 static void truncate_check_activity(Relation rel);
 static void RangeVarCallbackForTruncate(const RangeVar *relation,
 										Oid relId, Oid oldRelId, void *arg);
@@ -1591,12 +1590,6 @@ ExecuteTruncate(TruncateStmt *stmt)
 					continue;
 				}
 
-				/*
-				 * Inherited TRUNCATE commands perform access
-				 * permission checks on the parent table only.
-				 * So we skip checking the children's permissions
-				 * and don't call truncate_check_perms() here.
-				 */
 				truncate_check_rel(RelationGetRelid(rel), rel->rd_rel);
 				truncate_check_activity(rel);
 
@@ -1683,7 +1676,6 @@ ExecuteTruncateGuts(List *explicit_rels, List *relids, List *relids_logged,
 						(errmsg("truncate cascades to table \"%s\"",
 								RelationGetRelationName(rel))));
 				truncate_check_rel(relid, rel->rd_rel);
-				truncate_check_perms(relid, rel->rd_rel);
 				truncate_check_activity(rel);
 				rels = lappend(rels, rel);
 				relids = lappend_oid(relids, relid);
@@ -1934,6 +1926,7 @@ ExecuteTruncateGuts(List *explicit_rels, List *relids, List *relids_logged,
 static void
 truncate_check_rel(Oid relid, Form_pg_class reltuple)
 {
+	AclResult	aclresult;
 	char	   *relname = NameStr(reltuple->relname);
 
 	/*
@@ -1947,27 +1940,17 @@ truncate_check_rel(Oid relid, Form_pg_class reltuple)
 				(errcode(ERRCODE_WRONG_OBJECT_TYPE),
 				 errmsg("\"%s\" is not a table", relname)));
 
-	if (!allowSystemTableMods && IsSystemClass(relid, reltuple))
-		ereport(ERROR,
-				(errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
-				 errmsg("permission denied: \"%s\" is a system catalog",
-						relname)));
-}
-
-/*
- * Check that current user has the permission to truncate given relation.
- */
-static void
-truncate_check_perms(Oid relid, Form_pg_class reltuple)
-{
-	char	   *relname = NameStr(reltuple->relname);
-	AclResult	aclresult;
-
 	/* Permissions checks */
 	aclresult = pg_class_aclcheck(relid, GetUserId(), ACL_TRUNCATE);
 	if (aclresult != ACLCHECK_OK)
 		aclcheck_error(aclresult, get_relkind_objtype(reltuple->relkind),
 					   relname);
+
+	if (!allowSystemTableMods && IsSystemClass(relid, reltuple))
+		ereport(ERROR,
+				(errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
+				 errmsg("permission denied: \"%s\" is a system catalog",
+						relname)));
 }
 
 /*
@@ -14903,7 +14886,6 @@ RangeVarCallbackForTruncate(const RangeVar *relation,
 		elog(ERROR, "cache lookup failed for relation %u", relId);
 
 	truncate_check_rel(relId, (Form_pg_class) GETSTRUCT(tuple));
-	truncate_check_perms(relId, (Form_pg_class) GETSTRUCT(tuple));
 
 	ReleaseSysCache(tuple);
 }
diff --git a/src/test/regress/expected/privileges.out b/src/test/regress/expected/privileges.out
index bc8e198097..0ddbd8e89f 100644
--- a/src/test/regress/expected/privileges.out
+++ b/src/test/regress/expected/privileges.out
@@ -695,27 +695,6 @@ SELECT tableoid FROM atestp2; -- ok
 ----------
 (0 rows)
 
--- child's permissions do not apply when operating on parent
-SET SESSION AUTHORIZATION regress_priv_user1;
-REVOKE ALL ON atestc FROM regress_priv_user2;
-GRANT ALL ON atestp1 TO regress_priv_user2;
-SET SESSION AUTHORIZATION regress_priv_user2;
-SELECT f2 FROM atestp1; -- ok
- f2 
-----
-(0 rows)
-
-SELECT f2 FROM atestc; -- fail
-ERROR:  permission denied for table atestc
-DELETE FROM atestp1; -- ok
-DELETE FROM atestc; -- fail
-ERROR:  permission denied for table atestc
-UPDATE atestp1 SET f1 = 1; -- ok
-UPDATE atestc SET f1 = 1; -- fail
-ERROR:  permission denied for table atestc
-TRUNCATE atestp1; -- ok
-TRUNCATE atestc; -- fail
-ERROR:  permission denied for table atestc
 -- privileges on functions, languages
 -- switch to superuser
 \c -
diff --git a/src/test/regress/sql/privileges.sql b/src/test/regress/sql/privileges.sql
index dfe2603fe2..f15d1f3773 100644
--- a/src/test/regress/sql/privileges.sql
+++ b/src/test/regress/sql/privileges.sql
@@ -446,20 +446,6 @@ SELECT fy FROM atestp2; -- ok
 SELECT atestp2 FROM atestp2; -- ok
 SELECT tableoid FROM atestp2; -- ok
 
--- child's permissions do not apply when operating on parent
-SET SESSION AUTHORIZATION regress_priv_user1;
-REVOKE ALL ON atestc FROM regress_priv_user2;
-GRANT ALL ON atestp1 TO regress_priv_user2;
-SET SESSION AUTHORIZATION regress_priv_user2;
-SELECT f2 FROM atestp1; -- ok
-SELECT f2 FROM atestc; -- fail
-DELETE FROM atestp1; -- ok
-DELETE FROM atestc; -- fail
-UPDATE atestp1 SET f1 = 1; -- ok
-UPDATE atestc SET f1 = 1; -- fail
-TRUNCATE atestp1; -- ok
-TRUNCATE atestc; -- fail
-
 -- privileges on functions, languages
 
 -- switch to superuser