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Posted to issues@spark.apache.org by "Kris Mok (JIRA)" <ji...@apache.org> on 2019/01/26 00:40:00 UTC

[jira] [Created] (SPARK-26735) Verify plan integrity for special expressions

Kris Mok created SPARK-26735:
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             Summary: Verify plan integrity for special expressions
                 Key: SPARK-26735
                 URL: https://issues.apache.org/jira/browse/SPARK-26735
             Project: Spark
          Issue Type: Improvement
          Components: SQL
    Affects Versions: 3.0.0
            Reporter: Kris Mok


Add verification of plan integrity with regards to special expressions being hosted only in supported operators. Specifically:
* AggregateExpression: should only be hosted in Aggregate, or indirectly in Window
* WindowExpression: should only be hosted in Window
* Generator: should only be hosted in Generate



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