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14 为什么MySQL会选错索引?-慕课专栏 by wkhtmltopdf 0.12.5 is a book available to read on EtoBox.
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1、show index 的使用 2 2、Cardinality 取值 3 3、统计信息不准确导致选错索引 3 4、单次选取的数据量过大导致选错索引 4 5、总结 4 6、问题 5 7、参考资料 5
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