diff --git a/src/backend/parser/gram.y b/src/backend/parser/gram.y
index e15eb4c490c..b6a2c9da241 100644
--- a/src/backend/parser/gram.y
+++ b/src/backend/parser/gram.y
@@ -581,7 +581,7 @@ static Node *makeRecursiveViewSelect(char *relname, List *aliases, Node *query);
 
 	QUOTE
 
-	RANGE READ REAL REASSIGN RECHECK RECURSIVE REF REFERENCES REFRESH REINDEX
+	RANGE READ REAL REASSIGN RECHECK RECURSIVE REF_P REFERENCES REFRESH REINDEX
 	RELATIVE_P RELEASE RENAME REPEATABLE REPLACE REPLICA
 	RESET RESTART RESTRICT RETURNING RETURNS REVOKE RIGHT ROLE ROLLBACK
 	ROW ROWS RULE
@@ -11847,15 +11847,15 @@ xmlexists_argument:
 				{
 					$$ = $2;
 				}
-			| PASSING c_expr BY REF
+			| PASSING c_expr BY REF_P
 				{
 					$$ = $2;
 				}
-			| PASSING BY REF c_expr
+			| PASSING BY REF_P c_expr
 				{
 					$$ = $4;
 				}
-			| PASSING BY REF c_expr BY REF
+			| PASSING BY REF_P c_expr BY REF_P
 				{
 					$$ = $4;
 				}
@@ -12984,7 +12984,7 @@ unreserved_keyword:
 			| REASSIGN
 			| RECHECK
 			| RECURSIVE
-			| REF
+			| REF_P
 			| REFRESH
 			| REINDEX
 			| RELATIVE_P
diff --git a/src/include/parser/kwlist.h b/src/include/parser/kwlist.h
index 61fae22f0a0..41bd9e1864a 100644
--- a/src/include/parser/kwlist.h
+++ b/src/include/parser/kwlist.h
@@ -303,7 +303,7 @@ PG_KEYWORD("real", REAL, COL_NAME_KEYWORD)
 PG_KEYWORD("reassign", REASSIGN, UNRESERVED_KEYWORD)
 PG_KEYWORD("recheck", RECHECK, UNRESERVED_KEYWORD)
 PG_KEYWORD("recursive", RECURSIVE, UNRESERVED_KEYWORD)
-PG_KEYWORD("ref", REF, UNRESERVED_KEYWORD)
+PG_KEYWORD("ref", REF_P, UNRESERVED_KEYWORD)
 PG_KEYWORD("references", REFERENCES, RESERVED_KEYWORD)
 PG_KEYWORD("refresh", REFRESH, UNRESERVED_KEYWORD)
 PG_KEYWORD("reindex", REINDEX, UNRESERVED_KEYWORD)