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Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2016/04/03 15:40:25 UTC

[jira] [Assigned] (SPARK-14354) Let Expand take name expressions and infer output attributes

     [ https://issues.apache.org/jira/browse/SPARK-14354?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Apache Spark reassigned SPARK-14354:
------------------------------------

    Assignee: Apache Spark

> Let Expand take name expressions and infer output attributes
> ------------------------------------------------------------
>
>                 Key: SPARK-14354
>                 URL: https://issues.apache.org/jira/browse/SPARK-14354
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>            Reporter: Liang-Chi Hsieh
>            Assignee: Apache Spark
>
> Currently we create Expand operator by specifying projections (Seq[Seq[Expression]])  and its output. We allow Expand to reuse child operator's attributes and so make its contraints invalid. We should let it take name expressions and infer output itself.



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