Commit 1403fb00 authored by unknown's avatar unknown
Browse files

TRUNCATE is always a transaction on itself. pretent we're in auto-commit mode 

bug#8151
parent 28a18516

mysql-test/r/innodb.result

+1 −0
Original line number Diff line number Diff line
@@ -821,6 +821,7 @@ truncate table t1; 
Can't execute the given command because you have active locked tables or an active transaction

commit;

truncate table t1;

truncate table t1;

select * from t1;

a

insert into t1 values(1),(2);

mysql-test/t/innodb.test

+1 −0
Original line number Diff line number Diff line
@@ -528,6 +528,7 @@ insert into t1 values(1),(2); 
truncate table t1;

commit;

truncate table t1;

truncate table t1;

select * from t1;

insert into t1 values(1),(2);

delete from t1;

sql/sql_delete.cc

+6 −2
Original line number Diff line number Diff line
@@ -590,8 +590,12 @@ int mysql_truncate(THD *thd, TABLE_LIST *table_list, bool dont_send_ok) 
    {

      /* Probably InnoDB table */

      table_list->lock_type= TL_WRITE;

      DBUG_RETURN(mysql_delete(thd, table_list, (COND*) 0, (ORDER*) 0,

			       HA_POS_ERROR, 0));

      ulong save_options= thd->options;

      thd->options&= ~(ulong) (OPTION_BEGIN | OPTION_NOT_AUTOCOMMIT);

      int res= mysql_delete(thd, table_list, (COND*) 0, (ORDER*) 0,

			       HA_POS_ERROR, 0);

      thd->options= save_options;

      DBUG_RETURN(res);

    }

    if (lock_and_wait_for_table_name(thd, table_list))

      DBUG_RETURN(-1);