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Posted to reviews@spark.apache.org by GitBox <gi...@apache.org> on 2019/08/21 19:15:51 UTC
[GitHub] [spark] brkyvz commented on issue #25536: [SPARK-28837][SQL]
CTAS/RTAS should use nullable schema
brkyvz commented on issue #25536: [SPARK-28837][SQL] CTAS/RTAS should use nullable schema
URL: https://github.com/apache/spark/pull/25536#issuecomment-523609956
I'm also a +1 on this (and PR LGTM). However a follow up on this. Can we ensure that the written data really has the schema as nullable as well? I've seen many parquet files corrupted with nulls written to non-nullable fields according to Parquet's schema
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