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Posted to issues@spark.apache.org by "Michael Armbrust (JIRA)" <ji...@apache.org> on 2016/01/30 02:13:40 UTC

[jira] [Updated] (SPARK-13092) Track constraints in ExpressionSet

     [ https://issues.apache.org/jira/browse/SPARK-13092?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Michael Armbrust updated SPARK-13092:
-------------------------------------
    Assignee: Sameer Agarwal

> Track constraints in ExpressionSet
> ----------------------------------
>
>                 Key: SPARK-13092
>                 URL: https://issues.apache.org/jira/browse/SPARK-13092
>             Project: Spark
>          Issue Type: Sub-task
>          Components: SQL
>            Reporter: Sameer Agarwal
>            Assignee: Sameer Agarwal
>
> Create a new ExpressionSet that operates similar to an AttributeSet for keeping track of constraints. A nice addition to this will be to try and have it do other type of canonicalization (i.e. don't allow both a = b and b = a).



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