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MySQL 一行记录是怎么存储的？ 计算varchar最大长度时为什么不用考虑记录头信息、row_id、trx_id、roll_ptr？
#173
opened Sep 21, 2023 by
pledgew
非唯一索引在数据加锁时，在使用「小于等于」条件且「查询条件不存在」的情况下，next-key lock为什么也不会退化到间隙锁？
#157
opened Jul 16, 2023 by
Zison-Yung
"在 WHERE 子句中，如果在 OR 前的条件列是索引列，而在 OR 后的条件列不是索引列，那么索引会失效"。 这个结论是不是有问题
#156
opened Jul 15, 2023 by
yueludanfeng
ProTip!
Add no:assignee to see everything that’s not assigned.