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https://issues.apache.org/jira/browse/HIVE-15839?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15861723#comment-15861723
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Hive QA commented on HIVE-15839:
--------------------------------
Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12852094/HIVE-15839.03.patch
{color:green}SUCCESS:{color} +1 due to 1 test(s) being added or modified.
{color:red}ERROR:{color} -1 due to 3 failed/errored test(s), 10246 tests
executed
*Failed tests:*
{noformat}
TestDerbyConnector - did not produce a TEST-*.xml file (likely timed out)
(batchId=235)
org.apache.hadoop.hive.cli.TestEncryptedHDFSCliDriver.testCliDriver[encryption_join_with_different_encryption_keys]
(batchId=159)
org.apache.hadoop.hive.cli.TestPerfCliDriver.testCliDriver[query14]
(batchId=223)
{noformat}
Test results: https://builds.apache.org/job/PreCommit-HIVE-Build/3493/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/3493/console
Test logs: http://104.198.109.242/logs/PreCommit-HIVE-Build-3493/
Messages:
{noformat}
Executing org.apache.hive.ptest.execution.TestCheckPhase
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: 12852094 - PreCommit-HIVE-Build
> Don't force cardinality check if only WHEN NOT MATCHED is specified
> -------------------------------------------------------------------
>
> Key: HIVE-15839
> URL: https://issues.apache.org/jira/browse/HIVE-15839
> Project: Hive
> Issue Type: Sub-task
> Components: Query Planning, Query Processor, Transactions
> Affects Versions: 2.2.0
> Reporter: Eugene Koifman
> Assignee: Eugene Koifman
> Priority: Minor
> Attachments: HIVE-15839.01.patch, HIVE-15839.02.patch,
> HIVE-15839.03.patch
>
>
> should've been part of HIVE-14949
> if only WHEN NOT MATCHED is specified then the join is basically an anti-join
> and we are not retrieving any values from target side. So the cardinality
> check is just overhead (though presumably very minor since the filter above
> the join will filter everything and thus there is nothing to group)
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