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From "Vineet Garg (Jira)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-22408) The fix for CALCITE-2991 creates wrong results on edge case
Date Fri, 06 Dec 2019 10:45:00 GMT

    [ https://issues.apache.org/jira/browse/HIVE-22408?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16989626#comment-16989626
] 

Vineet Garg commented on HIVE-22408:
------------------------------------

[~kgyrtkirk] Would you mind taking a look at this?

> The fix for CALCITE-2991 creates wrong results on edge case
> -----------------------------------------------------------
>
>                 Key: HIVE-22408
>                 URL: https://issues.apache.org/jira/browse/HIVE-22408
>             Project: Hive
>          Issue Type: Bug
>          Components: CBO
>    Affects Versions: 3.1.2
>            Reporter: Steve Carlin
>            Assignee: Vineet Garg
>            Priority: Major
>              Labels: pull-request-available
>         Attachments: HIVE-22408.1.patch, HIVE-22408.2.patch, HIVE-22408.3.patch, HIVE-22408.4.patch,
HIVE-22408.5.patch, HIVE-22408.6.patch
>
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> The Calcite upgrade from 1.19 to 1.21 includes a fix for CALCITE-2991.  This patch causes
a failure in subquery_ALL.q
> In order to proceed with the upgrade, the patch was bypassed by creating the HiveRelMdMaxRowCount
class which overrides the behavior in Calcite.  
> In order to recreate the regression, remove this file and the references to the class
in HiveDefaultRelMetadataProvider.
> This Jira is being created before the HIVE-22274 PR has been pushed, so please wait until
that is pushed before working on this.



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