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这是我的场景:
用两个子表创建了一个稳定的 d0,每个表总共有 4000 列和 4 个标签。我尝试执行以下嵌套查询:
select (4000 columns + 4 tags) from (select * from d0)
来自 TDengine 客户端外壳,但外壳给我一个错误,并显示以下错误消息:
'invalid operation: invalid column name'