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MySQL索引失效关于OR的描述问题 #297

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qy-liuhuo opened this issue Dec 3, 2024 · 0 comments · May be fixed by #298

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qy-liuhuo commented Dec 3, 2024

图解MySQL-索引篇-索引失效有哪些-WHERE 子句中的 OR 中提到：

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。

这部分存在歧义， OR 后面的字段是索引列，前面的不是索引列也会导致索引失效

qy-liuhuo added a commit to qy-liuhuo/CS-Base that referenced this issue


          fix xiaolincoder#297

1ec70ff

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修正关于 OR 导致索引失效的描述 #298

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