mirror/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-01-24 07:44:22 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions

Merge mysql.com:/home/timka/mysql/src/5.0-virgin

Browse source 
into mysql.com:/home/timka/mysql/src/5.0-bug-8576
This commit is contained in:
unknown 2005-02-23 16:03:58 +02:00
commit a86dd5b707
1 changed files with 6 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
sql/opt_range.cc
View file

@ -7030,8 +7030,12 @@ get_best_group_min_max(PARAM *param, SEL_TREE *tree)
cur_group_key_parts, tree, cur_index_tree,
cur_quick_prefix_records, have_min, have_max,
&cur_read_cost, &cur_records);
if (cur_read_cost < best_read_cost)
/*
If cur_read_cost is lower than best_read_cost use cur_index.
Do not compare doubles directly because they may have different
representations (64 vs. 80 bits).
*/
if (cur_read_cost < best_read_cost - (DBL_EPSILON * cur_read_cost))
{
index_info= cur_index_info;
index= cur_index;