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Posted to reviews@spark.apache.org by GitBox <gi...@apache.org> on 2022/12/05 08:02:06 UTC

[GitHub] [spark] cloud-fan commented on pull request #38823: [SPARK-41290][SQL] Support GENERATED ALWAYS AS expressions for columns in create/replace table statements

cloud-fan commented on PR #38823:
URL: https://github.com/apache/spark/pull/38823#issuecomment-1336911874

   Does the SQL standard say anything about the restrictions of the generate expression? Can we allow `GENERATED AS rand()`? I think at least catalyst should have a rule to check the expression and make sure the data type is the same as column type.


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