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From "Hive QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-20406) Nested Coalesce giving incorrect results
Date Fri, 17 Aug 2018 05:33:00 GMT

    [ https://issues.apache.org/jira/browse/HIVE-20406?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16583375#comment-16583375
] 

Hive QA commented on HIVE-20406:
--------------------------------



Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12935933/HIVE-20406.1.patch

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

{color:red}ERROR:{color} -1 due to 2 failed/errored test(s), 14884 tests executed
*Failed tests:*
{noformat}
org.apache.hadoop.hive.cli.TestMiniDruidCliDriver.testCliDriver[druidmini_test1] (batchId=194)
org.apache.hadoop.hive.cli.TestMiniLlapCliDriver.testCliDriver[udf_coalesce] (batchId=155)
{noformat}

Test results: https://builds.apache.org/job/PreCommit-HIVE-Build/13291/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/13291/console
Test logs: http://104.198.109.242/logs/PreCommit-HIVE-Build-13291/

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
Tests exited with: TestsFailedException: 2 tests failed
{noformat}

This message is automatically generated.

ATTACHMENT ID: 12935933 - PreCommit-HIVE-Build

> Nested Coalesce giving incorrect results
> ----------------------------------------
>
>                 Key: HIVE-20406
>                 URL: https://issues.apache.org/jira/browse/HIVE-20406
>             Project: Hive
>          Issue Type: Bug
>          Components: CBO
>    Affects Versions: 3.0.0
>            Reporter: Riju Trivedi
>            Assignee: Vineet Garg
>            Priority: Critical
>         Attachments: HIVE-20406.1.patch
>
>
> Below query is returning NULL instead of 'TEST' 
> select coalesce(coalesce(null), 'TEST');
> {noformat}
> INFO  : OK
> +-------+
> |  _c0  |
> +-------+
> | NULL  |
> +-------+
> {noformat}



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