[ 
https://issues.apache.org/jira/browse/HIVE-20150?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16983028#comment-16983028
 ] 

Hive QA commented on HIVE-20150:
--------------------------------

| (x) *{color:red}-1 overall{color}* |
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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}  9m 
49s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  1m 
11s{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 
15s{color} | {color:blue} ql in master has 1534 extant Findbugs warnings. 
{color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  1m  
3s{color} | {color:green} master passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  1m 
35s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  1m 
10s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  1m 
10s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red}  0m 
46s{color} | {color:red} ql: The patch generated 53 new + 37 unchanged - 1 
fixed = 90 total (was 38) {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} findbugs {color} | {color:green}  4m 
27s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  1m  
5s{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} 27m  9s{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 
3.16.43-2+deb8u5 (2017-09-19) x86_64 GNU/Linux |
| Build tool | maven |
| Personality | 
/data/hiveptest/working/yetus_PreCommit-HIVE-Build-19623/dev-support/hive-personality.sh
 |
| git revision | master / 9c06b2c |
| Default Java | 1.8.0_111 |
| findbugs | v3.0.1 |
| checkstyle | 
http://104.198.109.242/logs//PreCommit-HIVE-Build-19623/yetus/diff-checkstyle-ql.txt
 |
| modules | C: ql U: ql |
| Console output | 
http://104.198.109.242/logs//PreCommit-HIVE-Build-19623/yetus.txt |
| Powered by | Apache Yetus    http://yetus.apache.org |


This message was automatically generated.



> TopNKey pushdown
> ----------------
>
>                 Key: HIVE-20150
>                 URL: https://issues.apache.org/jira/browse/HIVE-20150
>             Project: Hive
>          Issue Type: Improvement
>          Components: Physical Optimizer
>    Affects Versions: 4.0.0
>            Reporter: Teddy Choi
>            Assignee: Krisztian Kasa
>            Priority: Major
>              Labels: pull-request-available
>         Attachments: HIVE-20150.1.patch, HIVE-20150.10.patch, 
> HIVE-20150.11.patch, HIVE-20150.11.patch, HIVE-20150.14.patch, 
> HIVE-20150.15.patch, HIVE-20150.2.patch, HIVE-20150.4.patch, 
> HIVE-20150.5.patch, HIVE-20150.6.patch, HIVE-20150.7.patch, 
> HIVE-20150.8.patch, HIVE-20150.9.patch
>
>
> TopNKey operator is implemented in HIVE-17896, but it needs more work in 
> pushdown implementation. So this issue covers TopNKey pushdown implementation 
> with proper tests.



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