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From "Hive QA (Jira)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-22448) CBO: Expand the multiple count distinct with a group-by key
Date Sat, 02 Nov 2019 19:19:00 GMT

    [ https://issues.apache.org/jira/browse/HIVE-22448?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16965459#comment-16965459
] 

Hive QA commented on HIVE-22448:
--------------------------------

| (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:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m 56s{color} | {color:blue}
Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  9m  7s{color}
| {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  1m 13s{color} |
{color:green} master passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 41s{color}
| {color:green} master passed {color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue}  4m 19s{color} | {color:blue}
ql in master has 1545 extant Findbugs warnings. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  1m  2s{color} |
{color:green} master passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m 29s{color} | {color:blue}
Maven dependency ordering for patch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  1m 33s{color}
| {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  1m  8s{color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  1m  8s{color} | {color:green}
the patch passed {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red}  0m 41s{color} | {color:red}
ql: The patch generated 5 new + 4 unchanged - 1 fixed = 9 total (was 5) {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 21s{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 16s{color}
| {color:green} The patch does not generate ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black} 27m 14s{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-19266/dev-support/hive-personality.sh
|
| git revision | master / 1c2b7fa |
| Default Java | 1.8.0_111 |
| findbugs | v3.0.1 |
| checkstyle | http://104.198.109.242/logs//PreCommit-HIVE-Build-19266/yetus/diff-checkstyle-ql.txt
|
| modules | C: ql itests U: . |
| Console output | http://104.198.109.242/logs//PreCommit-HIVE-Build-19266/yetus.txt |
| Powered by | Apache Yetus    http://yetus.apache.org |


This message was automatically generated.



> CBO: Expand the multiple count distinct with a group-by key
> -----------------------------------------------------------
>
>                 Key: HIVE-22448
>                 URL: https://issues.apache.org/jira/browse/HIVE-22448
>             Project: Hive
>          Issue Type: Bug
>          Components: CBO
>            Reporter: Gopal Vijayaraghavan
>            Assignee: Jesus Camacho Rodriguez
>            Priority: Major
>              Labels: pull-request-available
>         Attachments: HIVE-22448.01.patch, HIVE-22448.patch
>
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> {code}
> create temporary table mytable1 (x integer, y integer, z integer, a integer);
> explain cbo
> select z, x, count(distinct y), count(distinct a)
> from mytable1
> group by z, x;
> explain cbo
> select count(distinct y), count(distinct a)
> from mytable1
> {code}
> The first is not vectorized, the second one is because of the grouping-set based rewrite
for count distinct.



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