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mysql update 操作执行太慢是什么原因？

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  •   micean · Nov 4, 2021 · 1635 views
    This topic created in 1704 days ago, the information mentioned may be changed or developed.
    语句大概是 update table set num = num + 1 where unique_id = 'uuid'
    unique_id 是 unique 索引
    总记录数 2000 多条
    并发量每秒执行 5 次左右

    执行结果太慢导致后面一条执行语句要花费几分钟，这是什么原因
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