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Posted to issues@spark.apache.org by "Xianyang Liu (JIRA)" <ji...@apache.org> on 2017/10/17 06:55:02 UTC

[jira] [Created] (SPARK-22293) Avoid unnecessary traversal in ResolveReferences

Xianyang Liu created SPARK-22293:
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             Summary: Avoid unnecessary traversal in ResolveReferences
                 Key: SPARK-22293
                 URL: https://issues.apache.org/jira/browse/SPARK-22293
             Project: Spark
          Issue Type: Improvement
          Components: SQL
    Affects Versions: 2.2.0
            Reporter: Xianyang Liu


We don't need traverse the children expression to determine whether there is an `Star` when expand `Star` expression.



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