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From "Liang-Chi Hsieh (JIRA)" <j...@apache.org>
Subject [jira] [Created] (SPARK-26808) Pruned schema should not change nullability
Date Fri, 01 Feb 2019 02:05:00 GMT
Liang-Chi Hsieh created SPARK-26808:
---------------------------------------

             Summary: Pruned schema should not change nullability
                 Key: SPARK-26808
                 URL: https://issues.apache.org/jira/browse/SPARK-26808
             Project: Spark
          Issue Type: Bug
          Components: SQL
    Affects Versions: 3.0.0
            Reporter: Liang-Chi Hsieh


We prune unnecessary nested fields from requested schema when reading Parquet. Now seems we
don't keep original nullability in pruned schema. We should keep original nullability.



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