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Posted to github@arrow.apache.org by "Jefffrey (via GitHub)" <gi...@apache.org> on 2023/10/28 12:06:19 UTC

Re: [I] Make an end to end reproducer for zero column batch issues [arrow-datafusion]

Jefffrey commented on issue #5713:
URL: https://github.com/apache/arrow-datafusion/issues/5713#issuecomment-1783791564

   I think excluding columns is a valid way to get zero column batches with non-empty row count: https://github.com/apache/arrow-datafusion/issues/6510#issuecomment-1782524357
   
   https://github.com/apache/arrow-datafusion/pull/7945 added a test to sqllogictests which could be considered end to end, however it is very simple involving only a projection.
   
   Is there a list of things to test for zero-column batches? I see limit and projection are the only ones mentioned in the original issue text.


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