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From "Vineet Garg (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-15673) Allow multiple queries with disjunction
Date Thu, 20 Apr 2017 23:59:04 GMT

    [ https://issues.apache.org/jira/browse/HIVE-15673?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15977822#comment-15977822
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Vineet Garg commented on HIVE-15673:
------------------------------------

Hi [~leftylev] It will be good to document this limitation. IMHO Subqueries in the WHERE Clause
is the most appropriate place to document this.

> Allow multiple queries with disjunction
> ---------------------------------------
>
>                 Key: HIVE-15673
>                 URL: https://issues.apache.org/jira/browse/HIVE-15673
>             Project: Hive
>          Issue Type: Sub-task
>          Components: Query Planning
>            Reporter: Vineet Garg
>            Assignee: Vineet Garg
>             Fix For: 3.0.0
>
>         Attachments: HIVE-15673.1.patch, HIVE-15673.2.patch, HIVE-15673.3.patch, HIVE-15673.4.patch,
HIVE-15673.5.patch, HIVE-15673.6.patch
>
>
> HIVE currently doesn't allow multiple subqueries with {{OR}} since calcite has a bug
in determining logic for OR expression. See [CALCITE-1546 |https://issues.apache.org/jira/browse/CALCITE-1546].
> Once calcite is released containing fix for the bug HIVE will need to lift the restriction
and add tests cases



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