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https://issues.apache.org/jira/browse/HIVE-20262?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16560905#comment-16560905
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Hive QA commented on HIVE-20262:
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| (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
24s{color} | {color:blue} Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 8m
20s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m
26s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
56s{color} | {color:green} master passed {color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue} 0m
33s{color} | {color:blue} common in master has 64 extant Findbugs warnings.
{color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue} 4m
7s{color} | {color:blue} ql in master has 2297 extant Findbugs warnings.
{color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m
16s{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
50s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m
29s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 1m
29s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red} 0m
16s{color} | {color:red} common: The patch generated 1 new + 423 unchanged - 0
fixed = 424 total (was 423) {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red} 0m
38s{color} | {color:red} ql: The patch generated 4 new + 49 unchanged - 0 fixed
= 53 total (was 49) {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
51s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m
10s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m
13s{color} | {color:green} The patch does not generate ASF License warnings.
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 28m 22s{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-12924/dev-support/hive-personality.sh
|
| git revision | master / beb57c6 |
| Default Java | 1.8.0_111 |
| findbugs | v3.0.0 |
| checkstyle |
http://104.198.109.242/logs//PreCommit-HIVE-Build-12924/yetus/diff-checkstyle-common.txt
|
| checkstyle |
http://104.198.109.242/logs//PreCommit-HIVE-Build-12924/yetus/diff-checkstyle-ql.txt
|
| modules | C: common ql U: . |
| Console output |
http://104.198.109.242/logs//PreCommit-HIVE-Build-12924/yetus.txt |
| Powered by | Apache Yetus http://yetus.apache.org |
This message was automatically generated.
> Implement stats annotation rule for the UDTFOperator
> ----------------------------------------------------
>
> Key: HIVE-20262
> URL: https://issues.apache.org/jira/browse/HIVE-20262
> Project: Hive
> Issue Type: Improvement
> Components: Physical Optimizer
> Reporter: George Pachitariu
> Assignee: George Pachitariu
> Priority: Minor
> Attachments: HIVE-20262.patch
>
>
> User Defined Table Functions (UDTFs) change the number of rows of the output.
> A common UDTF is the explode() method that creates a row for each element for
> each array in the input column.
>
> Right now, the number of output rows is equal to the number of input rows.
> But if the average number of output rows is bigger than 1, the resulting
> number of rows is underestimated in the execution plan.
>
> Implement a rule that can have a factor X as a parameter and for each UDTF
> function predict that:
>
> {code:java}
> number of output rows = X * number of input rows{code}
>
>
>
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