[
https://issues.apache.org/jira/browse/HIVE-17043?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16632481#comment-16632481
]
Hive QA commented on HIVE-17043:
--------------------------------
| (x) *{color:red}-1 overall{color}* |
\\
\\
|| 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
48s{color} | {color:blue} Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 8m
5s{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
41s{color} | {color:green} master passed {color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue} 4m
20s{color} | {color:blue} ql in master has 2322 extant Findbugs warnings.
{color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m
1s{color} | {color:green} master passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m
11s{color} | {color:blue} Maven dependency ordering for patch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 1m
32s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m
9s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 1m
9s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red} 0m
44s{color} | {color:red} ql: The patch generated 16 new + 51 unchanged - 3
fixed = 67 total (was 54) {color} |
| {color:red}-1{color} | {color:red} whitespace {color} | {color:red} 0m
0s{color} | {color:red} The patch has 13 line(s) that end in whitespace. Use
git apply --whitespace=fix <<patch_file>>. Refer
https://git-scm.com/docs/git-apply {color} |
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red} 4m
24s{color} | {color:red} ql generated 1 new + 2322 unchanged - 0 fixed = 2323
total (was 2322) {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
59s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:red}-1{color} | {color:red} asflicense {color} | {color:red} 0m
14s{color} | {color:red} The patch generated 1 ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black} 25m 45s{color} |
{color:black} {color} |
\\
\\
|| Reason || Tests ||
| FindBugs | module:ql |
| | Possible null pointer dereference of left in
org.apache.hadoop.hive.ql.optimizer.calcite.stats.EstimateUniqueKeys.getUniqueKeys(HiveJoin,
boolean) Dereferenced at EstimateUniqueKeys.java:left in
org.apache.hadoop.hive.ql.optimizer.calcite.stats.EstimateUniqueKeys.getUniqueKeys(HiveJoin,
boolean) Dereferenced at EstimateUniqueKeys.java:[line 210] |
\\
\\
|| 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-14107/dev-support/hive-personality.sh
|
| git revision | master / 6e27a53 |
| Default Java | 1.8.0_111 |
| findbugs | v3.0.0 |
| checkstyle |
http://104.198.109.242/logs//PreCommit-HIVE-Build-14107/yetus/diff-checkstyle-ql.txt
|
| whitespace |
http://104.198.109.242/logs//PreCommit-HIVE-Build-14107/yetus/whitespace-eol.txt
|
| findbugs |
http://104.198.109.242/logs//PreCommit-HIVE-Build-14107/yetus/new-findbugs-ql.html
|
| asflicense |
http://104.198.109.242/logs//PreCommit-HIVE-Build-14107/yetus/patch-asflicense-problems.txt
|
| modules | C: itests ql U: . |
| Console output |
http://104.198.109.242/logs//PreCommit-HIVE-Build-14107/yetus.txt |
| Powered by | Apache Yetus http://yetus.apache.org |
This message was automatically generated.
> Remove non unique columns from group by keys if not referenced later
> --------------------------------------------------------------------
>
> Key: HIVE-17043
> URL: https://issues.apache.org/jira/browse/HIVE-17043
> Project: Hive
> Issue Type: Sub-task
> Components: Logical Optimizer
> Affects Versions: 3.0.0
> Reporter: Ashutosh Chauhan
> Assignee: Vineet Garg
> Priority: Major
> Attachments: HIVE-17043.1.patch, HIVE-17043.2.patch,
> HIVE-17043.3.patch, HIVE-17043.4.patch, HIVE-17043.5.patch,
> HIVE-17043.6.patch, HIVE-17043.7.patch
>
>
> Group by keys may be a mix of unique (or primary) keys and regular columns.
> In such cases presence of regular column won't alter cardinality of groups.
> So, if regular columns are not referenced later, they can be dropped from
> group by keys. Depending on operator tree may result in those columns not
> being read at all from disk in best case. In worst case, we will avoid
> shuffling and sorting regular columns from mapper to reducer, which still
> could be substantial CPU and network savings.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
