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https://issues.apache.org/jira/browse/HIVE-10971?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14580047#comment-14580047
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Hive QA commented on HIVE-10971:
--------------------------------
{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/12738683/HIVE-10971.1.patch
{color:red}ERROR:{color} -1 due to 3 failed/errored test(s), 9006 tests executed
*Failed tests:*
{noformat}
org.apache.hadoop.hive.cli.TestSparkCliDriver.testCliDriver_groupby2
org.apache.hive.beeline.TestSchemaTool.testSchemaInit
org.apache.hive.beeline.TestSchemaTool.testSchemaUpgrade
{noformat}
Test results:
http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-TRUNK-Build/4234/testReport
Console output:
http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-TRUNK-Build/4234/console
Test logs:
http://ec2-174-129-184-35.compute-1.amazonaws.com/logs/PreCommit-HIVE-TRUNK-Build-4234/
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: 3 tests failed
{noformat}
This message is automatically generated.
ATTACHMENT ID: 12738683 - PreCommit-HIVE-TRUNK-Build
> count(*) with count(distinct) gives wrong results when
> hive.groupby.skewindata=true
> -----------------------------------------------------------------------------------
>
> Key: HIVE-10971
> URL: https://issues.apache.org/jira/browse/HIVE-10971
> Project: Hive
> Issue Type: Bug
> Components: Logical Optimizer
> Affects Versions: 1.2.0
> Reporter: wangmeng
> Assignee: wangmeng
> Attachments: HIVE-10971.01.patch, HIVE-10971.1.patch
>
>
> When hive.groupby.skewindata=true, the following query based on TPC-H gives
> wrong results:
> {code}
> set hive.groupby.skewindata=true;
> select l_returnflag, count(*), count(distinct l_linestatus)
> from lineitem
> group by l_returnflag
> limit 10;
> {code}
> The query plan shows that it generates only one MapReduce job instead of two
> theoretically, which is dictated by hive.groupby.skewindata=true.
> The problem arises only when {noformat}count(*){noformat} and
> {noformat}count(distinct){noformat} exist together.
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