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MDEV-6163: Error while executing an update query that has the same table in a sub-query

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We have to run the derived table prepare before the unique table check to mark the derived table (in this case the unique table check can turn that table to materialized one).
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2014-06-04 10:10:19 +03:00
parent 2673910654
commit 55bfabf971
3 changed files with 40 additions and 0 deletions
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7
sql/sql_update.cc
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@ -1017,6 +1017,13 @@ bool mysql_prepare_update(THD *thd, TABLE_LIST *table_list,
thd->lex->allow_sum_func= 0;
/*
We do not call DT_MERGE_FOR_INSERT because it has no sense for simple
(not multi-) update
*/
if (mysql_handle_derived(thd->lex, DT_PREPARE))
DBUG_RETURN(TRUE);
if (setup_tables_and_check_access(thd, &select_lex->context,
&select_lex->top_join_list,
table_list,