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pekka@mysql.com
2005-04-01 10:13:37 +02:00
parent 45a79c9056 7ace3f1362
commit 5b9bd8c0c8
8 changed files with 52 additions and 11 deletions
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sql/sql_select.cc
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@@ -10580,8 +10580,9 @@ 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
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
BUG#9213 in group_by.test).
when one index is defined as (part1, part2, ...) and another as
(part1, part2(N), ...) and the WHERE clause contains
"part1 = const1 AND part2=const2".
So we build tab->ref from scratch here.
*/
KEYUSE *keyuse= tab->keyuse;