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Posted to issues@spark.apache.org by "Xiao Li (JIRA)" <ji...@apache.org> on 2016/01/02 18:14:39 UTC

[jira] [Created] (SPARK-12605) Pushing Join Predicates Through Union All

Xiao Li created SPARK-12605:
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             Summary: Pushing Join Predicates Through Union All
                 Key: SPARK-12605
                 URL: https://issues.apache.org/jira/browse/SPARK-12605
             Project: Spark
          Issue Type: Improvement
          Components: SQL
    Affects Versions: 1.6.0
            Reporter: Xiao Li


When selectivity of Join predicates is high, we can push join through union all.



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