database/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-11-28 17:36:30 +03:00
Code Activity
192,249 Commits 3,295 Branches 1,099 Tags
f4ce1e487e752cf6c9b8a2bcbe195440cfdfcbbe
Commit Graph

3 Commits

Author SHA1 Message Date
Igor Babaev
bef20b5f36 MDEV-30538 Plans for SELECT and multi-table UPDATE/DELETE unexpectedly differ 
This patch allowed transformation of EXISTS subqueries into equivalent
IN predicands at the top level of WHERE conditions for multi-table UPDATE
and DELETE statements. There was no reason to prohibit the transformation
for such statements. The transformation provides more opportunities of
using semi-join optimizations.

Approved by Oleksandr Byelkin <sanja@mariadb.com>
 2023-02-03 11:17:03 -08:00
Varun Gupta
93c360e3a5 MDEV-15253: Default optimizer setting changes for MariaDB 10.4 
use_stat_tables= PREFERABLY
optimizer_use_condition_selectivity= 4
 2018-12-09 09:22:00 +05:30
Michael Widenius
a7abddeffa Create 'main' test directory and move 't' and 'r' there 2018-03-29 13:59:44 +03:00