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https://issues.apache.org/jira/browse/HIVE-20842?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16685948#comment-16685948
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Hive QA commented on HIVE-20842:
--------------------------------
Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12948034/HIVE-20842.11.patch
{color:red}ERROR:{color} -1 due to no test(s) being added or modified.
{color:red}ERROR:{color} -1 due to 1 failed/errored test(s), 15539 tests
executed
*Failed tests:*
{noformat}
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver[mapjoin_memcheck]
(batchId=45)
{noformat}
Test results:
https://builds.apache.org/job/PreCommit-HIVE-Build/14918/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/14918/console
Test logs: http://104.198.109.242/logs/PreCommit-HIVE-Build-14918/
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: 1 tests failed
{noformat}
This message is automatically generated.
ATTACHMENT ID: 12948034 - PreCommit-HIVE-Build
> Fix logic introduced in HIVE-20660 to estimate statistics for group by
> ----------------------------------------------------------------------
>
> Key: HIVE-20842
> URL: https://issues.apache.org/jira/browse/HIVE-20842
> Project: Hive
> Issue Type: Bug
> Components: Statistics
> Affects Versions: 4.0.0
> Reporter: Vineet Garg
> Assignee: Vineet Garg
> Priority: Major
> Attachments: HIVE-20842.1.patch, HIVE-20842.10.patch,
> HIVE-20842.11.patch, HIVE-20842.2.patch, HIVE-20842.3.patch,
> HIVE-20842.4.patch, HIVE-20842.5.patch, HIVE-20842.6.patch,
> HIVE-20842.7.patch, HIVE-20842.8.patch, HIVE-20842.9.patch
>
>
> HIVE-20660 introduced better estimation for group by operator. But the logic
> did not account for Partial and Full group by separately.
> For partial group by parallelism (i.e. number of tasks) should be taken into
> account.
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