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https://issues.apache.org/jira/browse/HIVE-22508?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16991768#comment-16991768
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Hive QA commented on HIVE-22508:
--------------------------------
Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12988314/HIVE-22508.2.patch
{color:green}SUCCESS:{color} +1 due to 3 test(s) being added or modified.
{color:red}ERROR:{color} -1 due to 1 failed/errored test(s), 17779 tests
executed
*Failed tests:*
{noformat}
org.apache.hadoop.hive.ql.TestMTQueries.testMTQueries1 (batchId=276)
{noformat}
Test results:
https://builds.apache.org/job/PreCommit-HIVE-Build/19834/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/19834/console
Test logs: http://104.198.109.242/logs/PreCommit-HIVE-Build-19834/
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: 12988314 - PreCommit-HIVE-Build
> KeyWrapperComparator throws exception
> -------------------------------------
>
> Key: HIVE-22508
> URL: https://issues.apache.org/jira/browse/HIVE-22508
> Project: Hive
> Issue Type: Bug
> Components: Physical Optimizer
> Reporter: Krisztian Kasa
> Assignee: Krisztian Kasa
> Priority: Major
> Fix For: 4.0.0
>
> Attachments: HIVE-22508.1.patch, HIVE-22508.1.patch,
> HIVE-22508.1.patch, HIVE-22508.2.patch
>
>
> TopNKeyOperator.KeyWrapperComparator throws exception when a new key and a
> copied key should be compared.
> The current implementation uses the standard object inspectors for all
> KeyWrapper instances. However when comparing untouched KeyWrappers the key
> object inspector should be used which can be extracted form
> Operator.inputObjectInspectors during initialization of the key's
> ExprNodeEvaluator.
> This can cause a ClassCastException when the comparator is used collections
> like TreeSet.
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