postgresql中sql查询语句报错处理——ERROR: failed to find conversion function from unknown to text

执行复杂查询遇到ERROR: failed to find conversion function from unknown to text 。

后来通过查资料，原来我里面用到别名了，别名直接用的话会报上述错误。
所以需要加 ::text 转换成文本类型 ::int 转换成int类型

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postgresql中sql查询语句报错处理——ERROR: failed to find conversion function from unknown to text

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