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https://issues.apache.org/jira/browse/HIVE-7159?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14039621#comment-14039621
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Hive QA commented on HIVE-7159:
-------------------------------
{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/12651427/HIVE-7159.9.patch
{color:red}ERROR:{color} -1 due to 13 failed/errored test(s), 5668 tests
executed
*Failed tests:*
{noformat}
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_mergejoins_mixed
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_semijoin
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_subq_where_serialization
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_subquery_in
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_subquery_in_having
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_subquery_views
org.apache.hadoop.hive.cli.TestMiniTezCliDriver.testCliDriver_dynpart_sort_optimization
org.apache.hadoop.hive.cli.TestMiniTezCliDriver.testCliDriver_subquery_exists
org.apache.hadoop.hive.cli.TestMiniTezCliDriver.testCliDriver_subquery_in
org.apache.hadoop.hive.cli.TestMinimrCliDriver.testCliDriver_root_dir_external_table
org.apache.hadoop.hive.cli.TestNegativeCliDriver.testNegativeCliDriver_authorization_ctas
org.apache.hive.hcatalog.pig.TestHCatLoader.testReadDataPrimitiveTypes
org.apache.hive.hcatalog.pig.TestOrcHCatLoader.testReadDataPrimitiveTypes
{noformat}
Test results:
http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-Build/534/testReport
Console output:
http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-Build/534/console
Test logs:
http://ec2-174-129-184-35.compute-1.amazonaws.com/logs/PreCommit-HIVE-Build-534/
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: 13 tests failed
{noformat}
This message is automatically generated.
ATTACHMENT ID: 12651427
> For inner joins push a 'is not null predicate' to the join sources for every
> non nullSafe join condition
> --------------------------------------------------------------------------------------------------------
>
> Key: HIVE-7159
> URL: https://issues.apache.org/jira/browse/HIVE-7159
> Project: Hive
> Issue Type: Bug
> Reporter: Harish Butani
> Assignee: Harish Butani
> Attachments: HIVE-7159.1.patch, HIVE-7159.2.patch, HIVE-7159.3.patch,
> HIVE-7159.4.patch, HIVE-7159.5.patch, HIVE-7159.6.patch, HIVE-7159.7.patch,
> HIVE-7159.8.patch, HIVE-7159.9.patch
>
>
> A join B on A.x = B.y
> can be transformed to
> (A where x is not null) join (B where y is not null) on A.x = B.y
> Apart from avoiding shuffling null keyed rows it also avoids issues with
> reduce-side skew when there are a lot of null values in the data.
> Thanks to [~gopalv] for the analysis and coming up with the solution.
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