subselet in delete (SCRUM)

mysql-test/r/subselect.result

@@ -335,3 +335,22 @@ a	b
 1	21
 2	22
 drop table t1, t2;
+drop table if exists t1, t2;
+create table t1 (a int NOT NULL, b int, primary key (a));
+create table t2 (a int NOT NULL, b int, primary key (a));
+insert into t1 values (0, 10),(1, 11),(2, 12);
+insert into t2 values (1, 21),(2, 12),(3, 23);
+select * from t1;
+a	b
+0	10
+1	11
+2	12
+select * from t1 where b = (select b from t2 where t1.a = t2.a);
+a	b
+2	12
+delete from t1 where b = (select b from t2 where t1.a = t2.a);
+select * from t1;
+a	b
+0	10
+1	11
+drop table t1, t2;

mysql-test/t/subselect.test

@@ -215,3 +215,14 @@ update t1 set b= (select b from t2 where t1.a = t2.a);
 select * from t1;
 drop table t1, t2;
 
+#delete with subselects
+drop table if exists t1, t2;
+create table t1 (a int NOT NULL, b int, primary key (a));
+create table t2 (a int NOT NULL, b int, primary key (a));
+insert into t1 values (0, 10),(1, 11),(2, 12);
+insert into t2 values (1, 21),(2, 12),(3, 23);
+select * from t1;
+select * from t1 where b = (select b from t2 where t1.a = t2.a);
+delete from t1 where b = (select b from t2 where t1.a = t2.a);
+select * from t1;
+drop table t1, t2;

sql/sql_delete.cc

@@ -37,14 +37,18 @@ int mysql_delete(THD *thd, TABLE_LIST *table_list, COND *conds, ORDER *order,
   bool 		using_limit=limit != HA_POS_ERROR;
   bool		transactional_table, log_delayed, safe_update, const_cond; 
   ha_rows	deleted;
+  TABLE_LIST    *delete_table_list= (TABLE_LIST*) 
+    thd->lex.select_lex.table_list.first;
   DBUG_ENTER("mysql_delete");
 
-  if (!(table = open_ltable(thd, table_list, table_list->lock_type)))
+  if ((open_and_lock_tables(thd, table_list)))
     DBUG_RETURN(-1);
+  fix_tables_pointers(&thd->lex.select_lex);
+  table= table_list->table;
   table->file->info(HA_STATUS_VARIABLE | HA_STATUS_NO_LOCK);
   thd->proc_info="init";
   table->map=1;
-  if (setup_conds(thd,table_list,&conds) || 
+  if (setup_conds(thd, delete_table_list, &conds) || 
       setup_ftfuncs(&thd->lex.select_lex))
     DBUG_RETURN(-1);