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Posted to issues@drill.apache.org by "Pritesh Maker (JIRA)" <ji...@apache.org> on 2018/06/01 17:27:00 UTC

[jira] [Updated] (DRILL-6456) Planner shouldn't create any exchanges on the right side of Lateral Join.

     [ https://issues.apache.org/jira/browse/DRILL-6456?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Pritesh Maker updated DRILL-6456:
---------------------------------
    Reviewer: Aman Sinha

> Planner shouldn't create any exchanges on the right side of Lateral Join.
> -------------------------------------------------------------------------
>
>                 Key: DRILL-6456
>                 URL: https://issues.apache.org/jira/browse/DRILL-6456
>             Project: Apache Drill
>          Issue Type: Bug
>          Components: Query Planning &amp; Optimization
>    Affects Versions: 1.14.0
>            Reporter: Hanumath Rao Maduri
>            Assignee: Hanumath Rao Maduri
>            Priority: Major
>              Labels: ready-to-commit
>             Fix For: 1.14.0
>
>
> Currently, there is no restriction placed on right side of the LateralJoin. This is causing planner to generate an Exchange when there are operators like (Agg, Limit, Sort etc). 
> Due to this unnest operator cannot retrieve the row from lateral's left side to process the pipeline further. Enhance the planner to not generate exchanges on the right side of the LateralJoin.



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