Comments (5)
yu285
commented on June 14, 2024
可以看下嵌套查询是否满足。
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foow123
commented on June 14, 2024
是，嵌套查询可以完成，我现在就是这么处理的，但这需要先创建一个临时表，然后将数据写入，再进行嵌套查询，最后再将临时表删除，而我仅仅只需要生成一个结果集进行数据处理而已，现在这种处理方式感觉太麻烦了
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yu285
commented on June 14, 2024
不好意思，没有太理解哈。嵌套查询不会创建临时表，再删除呢。不可以直接用select xxx from (select xxx ) 直接返回最终结果集吗？
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foow123
commented on June 14, 2024
中间查询的那部分临时数据并不保存在TDEngine中，只是其它模块请求时使用的参数，查询语句是从postgresql移植过来的，所以向问下是否有相应的查询方法
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yu285
commented on June 14, 2024
这个确实没有
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