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From "Hive QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-21837) MapJoin is throwing exception when selected column is having completely null values
Date Sun, 09 Jun 2019 07:05:00 GMT

    [ https://issues.apache.org/jira/browse/HIVE-21837?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16859384#comment-16859384
] 

Hive QA commented on HIVE-21837:
--------------------------------



Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12971257/HIVE-21837.3.patch

{color:green}SUCCESS:{color} +1 due to 1 test(s) being added or modified.

{color:red}ERROR:{color} -1 due to 2 failed/errored test(s), 16044 tests executed
*Failed tests:*
{noformat}
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[vectorized_mapjoin3] (batchId=163)
org.apache.hadoop.hive.ql.TestMTQueries.testMTQueries1 (batchId=264)
{noformat}

Test results: https://builds.apache.org/job/PreCommit-HIVE-Build/17494/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/17494/console
Test logs: http://104.198.109.242/logs/PreCommit-HIVE-Build-17494/

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: 2 tests failed
{noformat}

This message is automatically generated.

ATTACHMENT ID: 12971257 - PreCommit-HIVE-Build

> MapJoin is throwing exception when selected column is having completely null values
> -----------------------------------------------------------------------------------
>
>                 Key: HIVE-21837
>                 URL: https://issues.apache.org/jira/browse/HIVE-21837
>             Project: Hive
>          Issue Type: Bug
>    Affects Versions: 3.0.0
>            Reporter: Naresh P R
>            Assignee: Naresh P R
>            Priority: Major
>             Fix For: 4.0.0
>
>         Attachments: HIVE-21837.1.patch, HIVE-21837.2.patch, HIVE-21837.3.patch
>
>
> With huge data, below query
> {code:java}
> SELECT
>  a.id,
>  null
>  FROM table a 
>  JOIN table b ON (a.id = b.id)
>  JOIN (SELECT '1234' id, 'deptno' type UNION ALL SELECT '5678' id, 'deptno' type) c ON
(c.type = a.type){code}
> is throwing below exception.
> {code:java}
> Caused by: org.apache.hadoop.hive.ql.metadata.HiveException: Column vector class org.apache.hadoop.hive.ql.exec.vector.VoidColumnVector
is not supported!
>  at org.apache.hadoop.hive.ql.exec.vector.VectorizedBatchUtil.makeLikeColumnVector(VectorizedBatchUtil.java:624)
>  at org.apache.hadoop.hive.ql.exec.vector.VectorizedBatchUtil.makeLike(VectorizedBatchUtil.java:861)
>  at org.apache.hadoop.hive.ql.exec.vector.mapjoin.VectorMapJoinCommonOperator.commonSetup(VectorMapJoinCommonOperator.java:583)
>  at org.apache.hadoop.hive.ql.exec.vector.mapjoin.VectorMapJoinGenerateResultOperator.commonSetup(VectorMapJoinGenerateResultOperator.java:128)
>  at org.apache.hadoop.hive.ql.exec.vector.mapjoin.VectorMapJoinInnerGenerateResultOperator.commonSetup(VectorMapJoinInnerGenerateResultOperator.java:112)
>  at org.apache.hadoop.hive.ql.exec.vector.mapjoin.VectorMapJoinInnerMultiKeyOperator.process(VectorMapJoinInnerMultiKeyOperator.java:119)
>  ... 21 more{code}



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