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Posted to reviews@spark.apache.org by GitBox <gi...@apache.org> on 2022/09/26 07:45:21 UTC

[GitHub] [spark] cloud-fan commented on pull request #35969: [SPARK-38651][SQL] Add configuration to support writing out empty schemas in supported filebased datasources

cloud-fan commented on PR #35969:
URL: https://github.com/apache/spark/pull/35969#issuecomment-1257629718

   The regression was caused by https://github.com/apache/spark/commit/5c9eaa6b585e9febd782da8eb6490b24d0d39ff3
   
   I think the major question is: is it a valid use case to write data with empty schema to file sources? If it's valid, I think we should let each file source to do the schema checking. If not, we can add a legacy config to skip the schema check and restore to the old behavior.


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