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2017-8-8 xoyozo 转载请注明出处

对于具体化的查询结果,不支持该方法。

This method is not supported against a materialized query result.

可能对嵌套查询的子结果集进行 Count() 等操作,可以在内部 select 外套一层 .ToList(),我在万条记录中测试不影响执行时间,但没有具体分析生成的 SQL 语句和执行跟踪。

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James Jones
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