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is_deleted
MySQL 在数据区分度不高的字段上加了索引,并且总条数量大的表,有 where 条件时的 count(*)出现了走索引比不加索引时快的情况
MySQL
•
rqxiao
•
Sep 1, 2022
• Lastly replied by
reter
12
软删除用 is_deleted 或者 deleted_at 有人测试过两种的性能吗?
MySQL
•
a719114136
•
May 5, 2019
• Lastly replied by
17ns
1
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