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Posted to reviews@spark.apache.org by GitBox <gi...@apache.org> on 2022/11/04 05:58:32 UTC

[GitHub] [spark] grundprinzip commented on pull request #38468: [SPARK-41005][CONNECT][PYTHON] Arrow-based collect

grundprinzip commented on PR #38468:
URL: https://github.com/apache/spark/pull/38468#issuecomment-1303010466

   @zhengruifeng can you please add test cases for things like
   
   `select * from table limit 0` where the optimizer decides there are no qualifying rows but we have to return an empty schema. Right now, when the query returns an empty result you will not return anything which is not a valid result.


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