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(parent: 54875c2) | patch
Imrpove MySQL/MariaDB dialect initialization.
authorFederico Caselli <cfederico87@gmail.com>
Thu, 30 Dec 2021 22:29:55 +0000 (23:29 +0100)
committerFederico Caselli <cfederico87@gmail.com>
Mon, 3 Jan 2022 20:41:33 +0000 (21:41 +0100)
commit5e06f0f579df45116696fed78d65abcccc1dc3e3
tree909165b508dabfa4c67fb54947324da65266b848tree | snapshot
parent54875c21601eaca01e3217d5b22fab6f6cf50992commit | diff
Imrpove MySQL/MariaDB dialect initialization.

Replace ``SHOW VARIABLES LIKE`` statement with equivalent
``SELECT @@variable`` in MySQL and MariaDB dialect initialization.
This should avoid mutex contention caused by ``SHOW VARIABLES``,
improving initialization performance.

Change-Id: Id836ef534fcc1473c7aaf9270d08a4da9b8f62cf
closes: #7518
doc/build/changelog/unreleased_14/7518.rst [new file with mode: 0644] blob
lib/sqlalchemy/dialects/mysql/base.py diff | blob | blame | history
lib/sqlalchemy/dialects/mysql/pyodbc.py diff | blob | blame | history
test/dialect/mysql/test_dialect.py diff | blob | blame | history
Mirror of https://github.com/sqlalchemy/sqlalchemy.git