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| author | Sergey Petrunya <psergey@askmonty.org> | 2011-12-08 04:22:38 +0400 |
|---|---|---|
| committer | Sergey Petrunya <psergey@askmonty.org> | 2011-12-08 04:22:38 +0400 |
| commit | ae480437ce98bbba8624e52833b8edbcc495b014 (patch) | |
| tree | 90c04ca0ae44e83bfae4f20872cfcca17e0ce24e /sql/gcalc_tools.cc | |
| parent | 8e960817640168e68631a4dba7b39d3ca2c3d6e8 (diff) | |
| download | mariadb-git-ae480437ce98bbba8624e52833b8edbcc495b014.tar.gz | |
Small semi-join optimization improvement:
- if we're considering FirstMatch access with one inner table, and
@@optimizer_switch has semijoin_with_cache flag, calculate costs
as if we used join cache (because we will be able to do so)
Diffstat (limited to 'sql/gcalc_tools.cc')
0 files changed, 0 insertions, 0 deletions