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MDEV-16783 Assertion `!conds' failed in mysql_delete upon 2nd execution of SP with DELETE HISTORY

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* remove assertion
* do not setup `conds` if it's already cached

Fixes #823
This commit is contained in:
Nikita Malyavin
2018-07-24 01:59:15 +10:00
committed by Sergei Golubchik
parent 6c6ca907ee
commit db3be33ec8
3 changed files with 25 additions and 5 deletions
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14
sql/sql_delete.cc
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@ -323,12 +323,16 @@ bool mysql_delete(THD *thd, TABLE_LIST *table_list, COND *conds,
DBUG_ASSERT(table);
DBUG_ASSERT(!conds || thd->stmt_arena->is_stmt_execute());
if (select_lex->vers_setup_conds(thd, table_list))
DBUG_RETURN(TRUE);
DBUG_ASSERT(!conds);
conds= table_list->on_expr;
table_list->on_expr= NULL;
// conds could be cached from previous SP call
if (!conds)
{
if (select_lex->vers_setup_conds(thd, table_list))
DBUG_RETURN(TRUE);
conds= table_list->on_expr;
table_list->on_expr= NULL;
}
}
if (mysql_handle_list_of_derived(thd->lex, table_list, DT_MERGE_FOR_INSERT))