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| author | Varun Gupta <varun.gupta@mariadb.com> | 2021-02-03 22:11:59 +0530 |
|---|---|---|
| committer | Varun Gupta <varun.gupta@mariadb.com> | 2021-02-06 11:06:48 +0530 |
| commit | f91641b4fa56ddddfb250b2cffbc464cd544e95f (patch) | |
| tree | 5f1fd7261d8f7966871400e1077ea2cfadf52c45 /sql/message.h | |
| parent | 245fa8cd6ea8ff762abff7691691ac37cba75ce1 (diff) | |
| download | mariadb-git-f91641b4fa56ddddfb250b2cffbc464cd544e95f.tar.gz | |
MDEV-24740: Selectivity for equi-join predicates not involed in ref access is not taken into account for join cardinality estimation
Introduced a new function to evaluate the selectivity for equi-join predicates
which are not part of ref access.
Enabled this calculation only when one can use the ORDER BY LIMIT optimization.
Diffstat (limited to 'sql/message.h')
0 files changed, 0 insertions, 0 deletions