Liang-Chi Hsieh created SPARK-11955:
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Summary: Mark one side fields in merging schema for safely
pushdowning filters in parquet
Key: SPARK-11955
URL: https://issues.apache.org/jira/browse/SPARK-11955
Project: Spark
Issue Type: Improvement
Components: SQL
Reporter: Liang-Chi Hsieh
Currently we simply skip pushdowning filters in parquet if we enable schema
merging.
However, we can actually mark one side fields in merging schema for safely
pushdowning filters in parquet.
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