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这个项目想法挺好,说到底就是做了个工具,用于循环替代关键字符,之前动态查询pivot表经常会有类似的方式做,确实不错
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离线分析场景 SQL 执行慢一会儿问题不大,有时可以牺牲性能来降低理解成本。
另外调优是需要贴合实际场景的。简单的优化查询引擎本身就会帮你做的,但更多的还是要结合业务场景、表的数据量、表之间的关系去分析,缺失了这些信息,也只能给出通用的优化建议。。
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The text was updated successfully, but these errors were encountered: