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Posted to issues@spark.apache.org by "Hyukjin Kwon (JIRA)" <ji...@apache.org> on 2019/05/21 04:35:29 UTC

[jira] [Resolved] (SPARK-14111) Correct output nullability with constraints for logical plans

     [ https://issues.apache.org/jira/browse/SPARK-14111?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hyukjin Kwon resolved SPARK-14111.
----------------------------------
    Resolution: Incomplete

> Correct output nullability with constraints for logical plans
> -------------------------------------------------------------
>
>                 Key: SPARK-14111
>                 URL: https://issues.apache.org/jira/browse/SPARK-14111
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>            Reporter: Liang-Chi Hsieh
>            Priority: Major
>              Labels: bulk-closed
>
> We use output of logical plan as schema. Output nullablity is important and we should keep its correctness.
> With constraints and optimization, in fact we will change output nullability of logical plans. But we don't reflect such changes in the output attributes. So the output nullablity is not correct now.



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