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Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2016/02/29 05:34:18 UTC

[jira] [Assigned] (SPARK-13544) Rewrite/Propagate constraints for Aliases in Aggregate and Windows

     [ https://issues.apache.org/jira/browse/SPARK-13544?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Apache Spark reassigned SPARK-13544:
------------------------------------

    Assignee:     (was: Apache Spark)

> Rewrite/Propagate constraints for Aliases in Aggregate and Windows
> ------------------------------------------------------------------
>
>                 Key: SPARK-13544
>                 URL: https://issues.apache.org/jira/browse/SPARK-13544
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 2.0.0
>            Reporter: Xiao Li
>
> After plan analysis by Analyzer, three operators could have alias. They are Project, Aggregate and Window. So far, only Alias defined in Project will rewrite and propagate constraints.



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