Liang-Chi Hsieh created SPARK-17107:
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Summary: Remove redundant pushdown rule for set
Key: SPARK-17107
URL: https://issues.apache.org/jira/browse/SPARK-17107
Project: Spark
Issue Type: Improvement
Components: SQL
Reporter: Liang-Chi Hsieh
Priority: Minor
The Optimizer rules PushThroughSetOperations and PushDownPredicate have a
redundant rule to push down Filter through Union. We should remove it.
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