diff --git a/src/backend/optimizer/util/inherit.c b/src/backend/optimizer/util/inherit.c
index 94de855a22..00b65ca305 100644
--- a/src/backend/optimizer/util/inherit.c
+++ b/src/backend/optimizer/util/inherit.c
@@ -494,13 +494,8 @@ expand_single_inheritance_child(PlannerInfo *root, RangeTblEntry *parentrte,
 		childrte->inh = false;
 	childrte->securityQuals = NIL;
 
-	/*
-	 * No permission checking for the child RTE unless it's the parent
-	 * relation in its child role, which only applies to traditional
-	 * inheritance.
-	 */
-	if (childOID != parentOID)
-		childrte->perminfoindex = 0;
+	/* No permission checking for child RTEs. */
+	childrte->perminfoindex = 0;
 
 	/* Link not-yet-fully-filled child RTE into data structures */
 	parse->rtable = lappend(parse->rtable, childrte);