database/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-07-30 16:24:05 +03:00
Code Activity

MDEV-536: LP:1050806 - different result for a query using subquery, and

Browse Source 
MDEV-567: Wrong result from a query with correlated subquery if ICP is allowed:

backport the fix developed for SHOW EXPLAIN: 

revision-id: psergey@askmonty.org-20120719115219-212cxmm6qvf0wlrb
branch nick: 5.5-show-explain-r21
timestamp: Thu 2012-07-19 15:52:19 +0400
  BUG#992942 & MDEV-325: Pre-liminary commit for testing

and adjust it so that it handles DS-MRR scans correctly.
This commit is contained in:
Sergey Petrunya
2012-11-04 19:09:46 +04:00
parent 25b5831a77
commit 39e7072d64
5 changed files with 344 additions and 14 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
sql/sql_select.h
View File

@ -897,6 +897,14 @@ protected:
public:
JOIN_TAB *join_tab, **best_ref;
/*
Saved join_tab for pre_sorting. create_sort_index() will save here..
*/
JOIN_TAB *pre_sort_join_tab;
uint pre_sort_index;
Item *pre_sort_idx_pushed_cond;
void clean_pre_sort_join_tab();
/*
For "Using temporary+Using filesort" queries, JOIN::join_tab can point to
@ -1279,6 +1287,8 @@ public:
outer_ref_cond= pseudo_bits_cond= NULL;
in_to_exists_where= NULL;
in_to_exists_having= NULL;
pre_sort_join_tab= NULL;
}
int prepare(Item ***rref_pointer_array, TABLE_LIST *tables, uint wind_num,