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https://issues.apache.org/jira/browse/HIVE-17493?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16159919#comment-16159919
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Hive QA commented on HIVE-17493:
--------------------------------
Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12886201/HIVE-17493.1.patch
{color:red}ERROR:{color} -1 due to no test(s) being added or modified.
{color:red}ERROR:{color} -1 due to 7 failed/errored test(s), 11033 tests
executed
*Failed tests:*
{noformat}
TestAccumuloCliDriver - did not produce a TEST-*.xml file (likely timed out)
(batchId=230)
TestDummy - did not produce a TEST-*.xml file (likely timed out) (batchId=230)
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver[insert_values_orig_table_use_metadata]
(batchId=61)
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver[partition_wise_fileformat6]
(batchId=7)
org.apache.hadoop.hive.cli.TestMiniLlapCliDriver.testCliDriver[unionDistinct_1]
(batchId=143)
org.apache.hadoop.hive.cli.TestPerfCliDriver.testCliDriver[query14]
(batchId=234)
org.apache.hadoop.hive.cli.TestPerfCliDriver.testCliDriver[query23]
(batchId=234)
{noformat}
Test results: https://builds.apache.org/job/PreCommit-HIVE-Build/6748/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/6748/console
Test logs: http://104.198.109.242/logs/PreCommit-HIVE-Build-6748/
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: 7 tests failed
{noformat}
This message is automatically generated.
ATTACHMENT ID: 12886201 - PreCommit-HIVE-Build
> Improve PKFK cardinality estimation in Physical planning
> --------------------------------------------------------
>
> Key: HIVE-17493
> URL: https://issues.apache.org/jira/browse/HIVE-17493
> Project: Hive
> Issue Type: Improvement
> Components: Query Planning
> Reporter: Vineet Garg
> Assignee: Vineet Garg
> Attachments: HIVE-17493.1.patch
>
>
> Cardinality estimation of a join, after PK-FK relation has been ascertained,
> could be improved if parent of the join operator is LEFT outer or RIGHT outer
> join.
> Currently estimation is done by estimating reduction of rows occurred on PK
> side, then multiplying the reduction to FK side row count. This estimation of
> reduction currently doesn't distinguish b/w INNER or OUTER joins. This could
> be improved to handle outer joins better.
> TPC-DS query45 is impacted by this.
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