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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