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Posted to issues@hive.apache.org by "Vineet Garg (JIRA)" <ji...@apache.org> on 2017/02/14 04:23:41 UTC

[jira] [Updated] (HIVE-15905) Inefficient plan for correlated subqueries

     [ https://issues.apache.org/jira/browse/HIVE-15905?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Vineet Garg updated HIVE-15905:
-------------------------------
    Attachment: HIVE-15905.1.patch

> Inefficient plan for correlated subqueries
> ------------------------------------------
>
>                 Key: HIVE-15905
>                 URL: https://issues.apache.org/jira/browse/HIVE-15905
>             Project: Hive
>          Issue Type: Sub-task
>          Components: Query Planning
>            Reporter: Vineet Garg
>            Assignee: Vineet Garg
>         Attachments: HIVE-15905.1.patch
>
>
> Currently Calcite produces an un-necessary join to generate correlated values for inner query. More details are at CALCITE-1494.



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