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https://issues.apache.org/jira/browse/HIVE-18610?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16382553#comment-16382553
 ] 

Hive QA commented on HIVE-18610:
--------------------------------

| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
|| || || || {color:brown} Prechecks {color} ||
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue}  0m  
0s{color} | {color:blue} Findbugs executables are not available. {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:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m 
40s{color} | {color:blue} Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  6m 
55s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  1m 
21s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
52s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  1m 
10s{color} | {color:green} master passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m  
8s{color} | {color:blue} Maven dependency ordering for patch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  1m 
41s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  1m 
22s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  1m 
22s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red}  0m 
15s{color} | {color:red} serde: The patch generated 1 new + 127 unchanged - 1 
fixed = 128 total (was 128) {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red}  0m 
34s{color} | {color:red} ql: The patch generated 1 new + 6 unchanged - 4 fixed 
= 7 total (was 10) {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green}  0m 
 0s{color} | {color:green} The patch has no whitespace issues. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  1m 
11s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:red}-1{color} | {color:red} asflicense {color} | {color:red}  0m 
13s{color} | {color:red} The patch generated 49 ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black} 16m 45s{color} | 
{color:black} {color} |
\\
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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 
3.16.36-1+deb8u1 (2016-09-03) x86_64 GNU/Linux |
| Build tool | maven |
| Personality | 
/data/hiveptest/working/yetus_PreCommit-HIVE-Build-9426/dev-support/hive-personality.sh
 |
| git revision | master / b7b3f88 |
| Default Java | 1.8.0_111 |
| checkstyle | 
http://104.198.109.242/logs//PreCommit-HIVE-Build-9426/yetus/diff-checkstyle-serde.txt
 |
| checkstyle | 
http://104.198.109.242/logs//PreCommit-HIVE-Build-9426/yetus/diff-checkstyle-ql.txt
 |
| asflicense | 
http://104.198.109.242/logs//PreCommit-HIVE-Build-9426/yetus/patch-asflicense-problems.txt
 |
| modules | C: serde ql U: . |
| Console output | 
http://104.198.109.242/logs//PreCommit-HIVE-Build-9426/yetus.txt |
| Powered by | Apache Yetus    http://yetus.apache.org |


This message was automatically generated.



> Performance: ListKeyWrapper does not check for hashcode equals, before 
> comparing members
> ----------------------------------------------------------------------------------------
>
>                 Key: HIVE-18610
>                 URL: https://issues.apache.org/jira/browse/HIVE-18610
>             Project: Hive
>          Issue Type: Bug
>          Components: Query Processor
>    Affects Versions: 3.0.0
>            Reporter: Gopal V
>            Assignee: Gopal V
>            Priority: Major
>              Labels: complextype, performance
>         Attachments: HIVE-18610.1.patch, HIVE-18610.2.patch
>
>
> ListKeyWrapper::equals() 
> {code}
>     @Override
>     public boolean equals(Object obj) {
>       if (!(obj instanceof ListKeyWrapper)) {
>         return false;
>       }
>       Object[] copied_in_hashmap = ((ListKeyWrapper) obj).keys;
>       return equalComparer.areEqual(copied_in_hashmap, keys);
>     }
> {code}



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