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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 09:14:00 GMT

    [ https://issues.apache.org/jira/browse/HIVE-21837?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16859412#comment-16859412
] 

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

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|| Vote || Subsystem || Runtime || Comment ||
|| || || || {color:brown} Prechecks {color} ||
| {color:green}+1{color} | {color:green} @author {color} | {color:green}  0m  0s{color} |
{color:green} The patch does not contain any @author tags. {color} |
|| || || || {color:brown} master Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  8m 52s{color}
| {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  1m  6s{color} |
{color:green} master passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 43s{color}
| {color:green} master passed {color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue}  4m  5s{color} | {color:blue}
ql in master has 2256 extant Findbugs warnings. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 59s{color} |
{color:green} master passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  1m 29s{color}
| {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  1m  6s{color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  1m  6s{color} | {color:green}
the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 44s{color}
| {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green}  0m  1s{color}
| {color:green} The patch has no whitespace issues. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  4m 26s{color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  1m  2s{color} |
{color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 15s{color}
| {color:green} The patch does not generate ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black} 25m 18s{color} | {color:black}
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|| Subsystem || Report/Notes ||
| Optional Tests |  asflicense  javac  javadoc  findbugs  checkstyle  compile  |
| uname | Linux hiveptest-server-upstream 3.16.0-4-amd64 #1 SMP Debian 3.16.43-2+deb8u5 (2017-09-19)
x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /data/hiveptest/working/yetus_PreCommit-HIVE-Build-17496/dev-support/hive-personality.sh
|
| git revision | master / 07b4b84 |
| Default Java | 1.8.0_111 |
| findbugs | v3.0.0 |
| modules | C: ql U: ql |
| Console output | http://104.198.109.242/logs//PreCommit-HIVE-Build-17496/yetus.txt |
| Powered by | Apache Yetus    http://yetus.apache.org |


This message was automatically generated.



> 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, HIVE-21837.4.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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