You are viewing a plain text version of this content. The canonical link for it is here.

Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2016/03/15 10:27:33 UTC

[jira] [Assigned] (SPARK-13903) Modify output nullability with constraints for Join operator

     [ https://issues.apache.org/jira/browse/SPARK-13903?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Apache Spark reassigned SPARK-13903:
------------------------------------

    Assignee:     (was: Apache Spark)

> Modify output nullability with constraints for Join operator
> ------------------------------------------------------------
>
>                 Key: SPARK-13903
>                 URL: https://issues.apache.org/jira/browse/SPARK-13903
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>            Reporter: Liang-Chi Hsieh
>
> With constraints and optimization, we can make sure some outputs of a Join operator are not nulls. We should modify output nullability accordingly. We can use this information in later execution to avoid null checking.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscribe@spark.apache.org
For additional commands, e-mail: issues-help@spark.apache.org