[jira] [Commented] (HIVE-8092) count(*) returns NULL instead of 0 when result is empty

["Hive QA (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HIVE-8092?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14132822#comment-14132822 ] 

Hive QA commented on HIVE-8092:
-------------------------------



{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/12668548/HIVE-8092.01.patch

{color:red}ERROR:{color} -1 due to 10 failed/errored test(s), 6209 tests executed
*Failed tests:*
{noformat}
org.apache.hadoop.hive.cli.TestMiniTezCliDriver.testCliDriver_metadataonly1
org.apache.hadoop.hive.cli.TestMiniTezCliDriver.testCliDriver_optimize_nullscan
org.apache.hadoop.hive.cli.TestMiniTezCliDriver.testCliDriver_orc_merge1
org.apache.hadoop.hive.cli.TestMiniTezCliDriver.testCliDriver_orc_merge5
org.apache.hadoop.hive.cli.TestMiniTezCliDriver.testCliDriver_orc_merge6
org.apache.hadoop.hive.cli.TestMiniTezCliDriver.testCliDriver_orc_merge7
org.apache.hadoop.hive.cli.TestMiniTezCliDriver.testCliDriver_select_dummy_source
org.apache.hadoop.hive.ql.exec.vector.TestVectorGroupByOperator.testCountLongEmpty
org.apache.hive.hcatalog.pig.TestOrcHCatLoader.testReadDataPrimitiveTypes
org.apache.hive.minikdc.TestJdbcWithMiniKdcSQLAuthHttp.org.apache.hive.minikdc.TestJdbcWithMiniKdcSQLAuthHttp
{noformat}

Test results: http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-TRUNK-Build/781/testReport
Console output: http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-TRUNK-Build/781/console
Test logs: http://ec2-174-129-184-35.compute-1.amazonaws.com/logs/PreCommit-HIVE-TRUNK-Build-781/

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: 10 tests failed
{noformat}

This message is automatically generated.

ATTACHMENT ID: 12668548

> count(*) returns NULL instead of 0 when result is empty
> -------------------------------------------------------
>
>                 Key: HIVE-8092
>                 URL: https://issues.apache.org/jira/browse/HIVE-8092
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Matt McCline
>            Assignee: Matt McCline
>            Priority: Critical
>         Attachments: HIVE-8092.01.patch
>
>
> In tez mode when vectorization is enabled, count returns NULL when result is empty.
> Expected behavior: It should return 0
> count works as expected when vectorization is off



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