5 Commits

Author	SHA1	Message	Date
Sergei Golubchik	3a1cf2c85b	MDEV-34679 ER_BAD_FIELD uses non-localizable substrings	2024-10-17 21:37:37 +02:00
Dave Gosselin	02e38e2ece	MDEV-33971 NAME_CONST in WHERE clause replaced by inner item ... Improve performance of queries like SELECT * FROM t1 WHERE field = NAME_CONST('a', 4); by, in this example, replacing the WHERE clause with field = 4 in the case of ref access. The rewrite is done during fix_fields and we disambiguate this case from other cases of NAME_CONST by inspecting where we are in parsing. We rely on THD::where to accomplish this. To improve performance there, we change the type of THD::where to be an enumeration, so we can avoid string comparisons during Item_name_const::fix_fields. Consequently, this patch also changes all usages of THD::where to conform likewise.	2024-07-10 17:23:43 -04:00
Oleksandr Byelkin	de745ecf29	MDEV-11953: support of brackets in UNION/EXCEPT/INTERSECT operations	2018-07-04 19:13:55 +02:00
Igor Babaev	3c4bb0e872	MDEV-334: Backport of UNION ALL optimization from mysql-5.7. ... Although the original code of mysql-5.7 was adjusted to the current MariaDB code the main ideas of the optimization were preserved.	2014-10-14 09:36:50 -07:00
unknown	4a38b9db9a	Innodb full text search tests.	2013-09-24 16:47:33 +03:00