lock0lock.c:

  Fix a bug in the query cache algorithm for the AUTOCOMMIT=0 case


innobase/lock/lock0lock.c:
  Fix a bug in the query cache algorithm for the AUTOCOMMIT=0 case

innobase/lock/lock0lock.c

@@ -3602,7 +3602,8 @@ lock_release_off_kernel(
 			ut_ad(lock_get_type(lock) == LOCK_TABLE);
 
 			if (lock_get_mode(lock) != LOCK_IS
-			    && (trx->insert_undo || trx->update_undo)) {
+			    && 0 != ut_dulint_cmp(trx->undo_no,
+						  ut_dulint_zero)) {
 
 				/* The trx may have modified the table.
 				We block the use of the MySQL query cache