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Posted to issues@spark.apache.org by "Liang-Chi Hsieh (JIRA)" <ji...@apache.org> on 2019/02/01 02:05:00 UTC

[jira] [Created] (SPARK-26808) Pruned schema should not change nullability

Liang-Chi Hsieh created SPARK-26808:
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             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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