重写优化
信息
丰富的SQL重写优化,推荐语义等价,但执行效率更高的SQL语句.
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📄️ COUNT标量子查询优化
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📄️ Implicit Data Type Conversion
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📄️ Calculation Disables Index Usage
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📄️ IN子查询优化
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📄️ 连接消除
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📄️ OR连接的条件重写为UNION
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📄️ 外连接转化为内连接
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📄️ 投影下推
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📄️ 标识子查询优化
📄️ 查询折叠
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📄️ 显式禁止结果字段排序
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📄️ NPE问题重写
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📄️ SAT-TC重写优化
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