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From "Hive QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-8681) CBO: Column names are missing from join expression in Map join with CBO enabled
Date Thu, 18 Dec 2014 02:22:13 GMT

    [ https://issues.apache.org/jira/browse/HIVE-8681?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14251035#comment-14251035
] 

Hive QA commented on HIVE-8681:
-------------------------------



{color:red}Overall{color}: -1 at least one tests failed

Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12687872/HIVE-8681.3.patch

{color:red}ERROR:{color} -1 due to 4 failed/errored test(s), 6715 tests executed
*Failed tests:*
{noformat}
org.apache.hadoop.hive.cli.TestMiniTezCliDriver.testCliDriver_optimize_nullscan
org.apache.hadoop.hive.cli.TestMinimrCliDriver.testCliDriver_schemeAuthority
org.apache.hadoop.hive.ql.optimizer.physical.TestVectorizer.testAggregateOnUDF
org.apache.hive.hcatalog.streaming.TestStreaming.testTransactionBatchEmptyCommit
{noformat}

Test results: http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-TRUNK-Build/2118/testReport
Console output: http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-TRUNK-Build/2118/console
Test logs: http://ec2-174-129-184-35.compute-1.amazonaws.com/logs/PreCommit-HIVE-TRUNK-Build-2118/

Messages:
{noformat}
Executing org.apache.hive.ptest.execution.PrepPhase
Executing org.apache.hive.ptest.execution.ExecutionPhase
Executing org.apache.hive.ptest.execution.ReportingPhase
Tests exited with: TestsFailedException: 4 tests failed
{noformat}

This message is automatically generated.

ATTACHMENT ID: 12687872 - PreCommit-HIVE-TRUNK-Build

> CBO: Column names are missing from join expression in Map join with CBO enabled
> -------------------------------------------------------------------------------
>
>                 Key: HIVE-8681
>                 URL: https://issues.apache.org/jira/browse/HIVE-8681
>             Project: Hive
>          Issue Type: Improvement
>            Reporter: Pengcheng Xiong
>            Assignee: Pengcheng Xiong
>         Attachments: HIVE-8681.1.patch, HIVE-8681.2.patch, HIVE-8681.3.patch
>
>
> On Hive 14 when CBO is enabled the column names are missing from the join expression.
Rather than to use external names "key", "value", some internal names such as "_col0" or "_col1"
are used. For map join with more than two tables it is very hard to figure the actual join
order. In this patch, I am going to address this issue not only for join but also for all
the other operators. And it will also be addressed in not only CLI but also TEZ environment.



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