收集表+索引的数据大小 #3
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收集表+索引的数据大小 #3
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谢谢 这个select查询，资源消耗不可控，merge后是否会对高峰期线上的业务造成影响？ |
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@laiwei 的确不可控，我觉得主要看有多少张表。 |
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执行
SELECT (SUM(DATA_LENGTH)+SUM(INDEX_LENGTH)) AS data_size FROM INFORMATION_SCHEMA.TABLES来收集数据总量大小，执行时间视情况可能比较长。