mirror of
https://github.com/MariaDB/server.git
synced 2025-08-01 03:47:19 +03:00
Better comment
This commit is contained in:
@ -7179,8 +7179,9 @@ test_if_skip_sort_order(JOIN_TAB *tab,ORDER *order,ha_rows select_limit,
|
|||||||
/*
|
/*
|
||||||
We'll use ref access method on key new_ref_key. In general case
|
We'll use ref access method on key new_ref_key. In general case
|
||||||
the index search tuple for new_ref_key will be different (e.g.
|
the index search tuple for new_ref_key will be different (e.g.
|
||||||
when one of the indexes only covers prefix of the field, see
|
when one index is defined as (part1, part2, ...) and another as
|
||||||
BUG#9213 in group_by.test).
|
(part1, part2(N), ...) and the WHERE clause contains
|
||||||
|
"part1 = const1 AND part2=const2".
|
||||||
So we build tab->ref from scratch here.
|
So we build tab->ref from scratch here.
|
||||||
*/
|
*/
|
||||||
KEYUSE *keyuse= tab->keyuse;
|
KEYUSE *keyuse= tab->keyuse;
|
||||||
|
Reference in New Issue
Block a user