mirror of
https://github.com/rails/rails.git
synced 2022-11-09 12:12:34 -05:00
859fba7c4b
MySQL supports DELETE with LIMIT and ORDER BY. https://dev.mysql.com/doc/refman/8.0/en/delete.html Before: ``` Post Destroy (1.0ms) DELETE FROM `posts` WHERE `posts`.`id` IN (SELECT `id` FROM (SELECT `posts`.`id` FROM `posts` WHERE `posts`.`author_id` = ? ORDER BY `posts`.`id` ASC LIMIT ?) __active_record_temp) [["author_id", 1], ["LIMIT", 1]] ``` After: ``` Post Destroy (0.4ms) DELETE FROM `posts` WHERE `posts`.`author_id` = ? ORDER BY `posts`.`id` ASC LIMIT ? [["author_id", 1], ["LIMIT", 1]] ``` |
||
|---|---|---|
| .. | ||
| depth_first.rb | ||
| dot.rb | ||
| ibm_db.rb | ||
| informix.rb | ||
| mssql.rb | ||
| mysql.rb | ||
| oracle.rb | ||
| oracle12.rb | ||
| postgresql.rb | ||
| sqlite.rb | ||
| to_sql.rb | ||
| visitor.rb | ||
| where_sql.rb | ||