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| author | Sergei Petrunia <psergey@askmonty.org> | 2021-03-28 23:45:04 +0300 |
|---|---|---|
| committer | Sergei Petrunia <psergey@askmonty.org> | 2021-03-31 09:52:28 +0300 |
| commit | 5b678d9ea4aa3b5ed4c030a9bb5e7d15c3ff8804 (patch) | |
| tree | 12d45cfa283f2f1516c81d52c94107dd1aa0717a | |
| parent | 76d2846a71a155ee2861fd52e6635e35490a9dd1 (diff) | |
| download | mariadb-git-5b678d9ea4aa3b5ed4c030a9bb5e7d15c3ff8804.tar.gz | |
MDEV-25251: main.derived_split_innodb fails on ICC release binarybb-10.5-mdev25251-v2
The code compares two query plans with identical costs, the plan
with lateral is the same as one without. Introduce a small difference
to cost numbers to prefer non-lateral plan in this case.
| -rw-r--r-- | sql/opt_split.cc | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sql/opt_split.cc b/sql/opt_split.cc index 2aa65bdf03b..797401c9b42 100644 --- a/sql/opt_split.cc +++ b/sql/opt_split.cc @@ -996,7 +996,7 @@ SplM_plan_info * JOIN_TAB::choose_best_splitting(double record_count, } if (spl_plan) { - if(record_count * spl_plan->cost < spl_opt_info->unsplit_cost) + if(record_count * spl_plan->cost < spl_opt_info->unsplit_cost - 0.01) { /* The best plan that employs splitting is cheaper than |