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Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2022/04/29 11:01:22 UTC

[GitHub] [arrow-datafusion] doki23 commented on pull request #2177: User Defined Table Function (udtf) support

doki23 commented on PR #2177:
URL: https://github.com/apache/arrow-datafusion/pull/2177#issuecomment-1113175672

   > I don't think it should return multiply columns, structures are usually used for this.
   
   I cannot agree. Result of *Table Function* represents a temporary table. Since it's a table, it shouldn't only have one column.  Of course, one column of type structure can solve the problem, but it's different. We cannot directly use `order by` or other sql statements on it if we don't extract the structure.


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