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-17493: Partition pruning doesn't work for nested outer joins

Browse Source 
Reuse the fix for MDEV-17518 here, too.
This commit is contained in:
Sergei Petrunia
2018-10-23 11:23:34 +02:00
parent 03680a9b4f
commit 3b6d903852
4 changed files with 120 additions and 61 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
sql/sql_select.h
View File

@ -263,8 +263,12 @@ typedef struct st_join_table {
/*
Pointer to the associated ON expression. on_expr_ref=!NULL except for
degenerate joins.
*on_expr_ref!=NULL for tables that are first inner tables within an outer
join.
Optimization phase: *on_expr_ref!=NULL for tables that are the single
tables on the inner side of the outer join (t1 LEFT JOIN t2 ON...)
Execution phase: *on_expr_ref!=NULL for tables that are first inner tables
within an outer join (which may have multiple tables)
*/
Item **on_expr_ref;
COND_EQUAL *cond_equal; /**< multiple equalities for the on expression */