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MDEV-8701 Crash on derived query

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MDEV-8938 Server Crash on Update with joins

Make unique table check after setup_fields of update because unique table can materialize table and we do not need field resolving after materialization.
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Oleksandr Byelkin 2015-11-06 17:56:56 +01:00
commit c88ca2c227
5 changed files with 158 additions and 10 deletions
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sql/sql_update.h
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@ -27,6 +27,7 @@ typedef class st_select_lex_unit SELECT_LEX_UNIT;
bool mysql_prepare_update(THD *thd, TABLE_LIST *table_list,
Item **conds, uint order_num, ORDER *order);
bool check_unique_table(THD *thd, TABLE_LIST *table_list);
int mysql_update(THD *thd,TABLE_LIST *tables,List<Item> &fields,
List<Item> &values,COND *conds,
uint order_num, ORDER *order, ha_rows limit,