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From "Davies Liu (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (SPARK-14781) Support subquery in nested predicates
Date Mon, 02 May 2016 20:00:14 GMT

     [ https://issues.apache.org/jira/browse/SPARK-14781?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Davies Liu resolved SPARK-14781.
--------------------------------
       Resolution: Fixed
    Fix Version/s: 2.0.0

Issue resolved by pull request 12820
[https://github.com/apache/spark/pull/12820]

> Support subquery in nested predicates
> -------------------------------------
>
>                 Key: SPARK-14781
>                 URL: https://issues.apache.org/jira/browse/SPARK-14781
>             Project: Spark
>          Issue Type: New Feature
>          Components: SQL
>            Reporter: Davies Liu
>            Assignee: Davies Liu
>             Fix For: 2.0.0
>
>
> Right now, we does not support nested IN/EXISTS subquery, for example 
> EXISTS( x1) OR EXISTS( x2)
> In order to do that, we could use an internal-only join type SemiPlus, which will output
every row from left, plus additional column as the result of join condition. Then we could
replace the EXISTS() or IN() by the result column.



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