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Posted to reviews@spark.apache.org by GitBox <gi...@apache.org> on 2019/02/01 11:37:56 UTC
[GitHub] HyukjinKwon edited a comment on issue #23719: [SPARK-26808][SQL]
Pruned schema should not change nullability
HyukjinKwon edited a comment on issue #23719: [SPARK-26808][SQL] Pruned schema should not change nullability
URL: https://github.com/apache/spark/pull/23719#issuecomment-459694885
> Even we can't get a not-nullable column when reading from a parquet file
@viirya, I think we are able to get a non-nullable column via structured streaming if the codes have not been changed since I read it.
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