Require IN in LOCK syntax.

diff --git a/src/backend/parser/gram.y b/src/backend/parser/gram.y
index 7d466e3063853f3190c37610e1b9e2ff6cd33906..1685650c102e2edc698ed1b4ca5203a1341f8fd9 100644 (file)
--- a/src/backend/parser/gram.y
+++ b/src/backend/parser/gram.y
@@ -2592,7 +2592,7 @@ DeleteStmt:  DELETE FROM relation_name
                                }
                ;
 
-LockStmt:      LOCK_P opt_table relation_name opt_lock
+LockStmt:      LOCK_P opt_table relation_name IN opt_lock
                                {
                                        LockStmt *n = makeNode(LockStmt);