Commit a86dd5b7 authored by unknown's avatar unknown
Browse files

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

into mysql.com:/home/timka/mysql/src/5.0-bug-8576
parents e6944e4d 9c7879c2

sql/opt_range.cc

+6 −2
Original line number Diff line number Diff line
@@ -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;