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From "Hive QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-22046) Differentiate among column stats computed by different engines
Date Tue, 06 Aug 2019 06:05:00 GMT

    [ https://issues.apache.org/jira/browse/HIVE-22046?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16900659#comment-16900659
] 

Hive QA commented on HIVE-22046:
--------------------------------



Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12976781/HIVE-22046.09.patch

{color:green}SUCCESS:{color} +1 due to 11 test(s) being added or modified.

{color:green}SUCCESS:{color} +1 due to 16723 tests passed

Test results: https://builds.apache.org/job/PreCommit-HIVE-Build/18265/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/18265/console
Test logs: http://104.198.109.242/logs/PreCommit-HIVE-Build-18265/

Messages:
{noformat}
Executing org.apache.hive.ptest.execution.TestCheckPhase
Executing org.apache.hive.ptest.execution.PrepPhase
Executing org.apache.hive.ptest.execution.YetusPhase
Executing org.apache.hive.ptest.execution.ExecutionPhase
Executing org.apache.hive.ptest.execution.ReportingPhase
{noformat}

This message is automatically generated.

ATTACHMENT ID: 12976781 - PreCommit-HIVE-Build

> Differentiate among column stats computed by different engines
> --------------------------------------------------------------
>
>                 Key: HIVE-22046
>                 URL: https://issues.apache.org/jira/browse/HIVE-22046
>             Project: Hive
>          Issue Type: Improvement
>          Components: Metastore
>            Reporter: Jesus Camacho Rodriguez
>            Assignee: Jesus Camacho Rodriguez
>            Priority: Major
>              Labels: pull-request-available
>         Attachments: HIVE-22046.01.patch, HIVE-22046.02.patch, HIVE-22046.03.patch, HIVE-22046.04.patch,
HIVE-22046.05.patch, HIVE-22046.06.patch, HIVE-22046.07.patch, HIVE-22046.08.patch, HIVE-22046.09.patch,
HIVE-22046.patch
>
>          Time Spent: 1h 10m
>  Remaining Estimate: 0h
>
> The goal is to avoid computation of column stats by engines to step on each other, e.g.,
Hive and Impala. In longer term, we may introduce a common representation for the column statistics
stored by different engines.
> For this issue, we will add a new column 'engine' to TAB_COL_STATS HMS table (unpartitioned
tables) and to PART_COL_STATS HMS table (partitioned tables). This will prevent conflicts
at the column level stats.



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