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https://issues.apache.org/jira/browse/HIVE-18490?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16332259#comment-16332259
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Hive QA commented on HIVE-18490:
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| (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
1s{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} 6m
50s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m
57s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
39s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
52s{color} | {color:green} master passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 1m
17s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m
57s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m
57s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red} 0m
38s{color} | {color:red} ql: The patch generated 2 new + 637 unchanged - 0
fixed = 639 total (was 637) {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} 0m
51s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m
14s{color} | {color:green} The patch does not generate ASF License warnings.
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| {color:black}{color} | {color:black} {color} | {color:black} 13m 31s{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/dev-support/hive-personality.sh |
| git revision | master / d6c6d96 |
| Default Java | 1.8.0_111 |
| checkstyle |
http://104.198.109.242/logs//PreCommit-HIVE-Build-8698/yetus/diff-checkstyle-ql.txt
|
| modules | C: ql U: ql |
| Console output |
http://104.198.109.242/logs//PreCommit-HIVE-Build-8698/yetus.txt |
| Powered by | Apache Yetus http://yetus.apache.org |
This message was automatically generated.
> Query with EXISTS and NOT EXISTS with non-equi predicate can produce wrong
> result
> ---------------------------------------------------------------------------------
>
> Key: HIVE-18490
> URL: https://issues.apache.org/jira/browse/HIVE-18490
> Project: Hive
> Issue Type: Bug
> Reporter: Vineet Garg
> Assignee: Vineet Garg
> Priority: Critical
> Attachments: HIVE-18490.1.patch
>
>
> Queries such as following can produce wrong result
> {code:sql}
> select
> count(ws_order_number)
> from
> web_sales ws1
> where
> and exists (select *
> from web_sales ws2
> where ws1.ws_order_number = ws2.ws_order_number
> and ws1.ws_warehouse_sk <> ws2.ws_warehouse_sk)
> and not exists(select *
> from web_returns wr1
> where ws1.ws_order_number = wr1.wr_order_number);
> {code}
> This query is simplified version of tpcds query 94. Such queries are
> rewritten into LEFT SEMI JOIN and LEFT OUTER JOIN with residual
> predicate/filter (non-equi join key). Problem is that these joins are being
> merged, we shouldn't be merging since semi join has non-equi join filter.
> Basically the underlying issue is that if a query has multiple join with LEFT
> SEMI JOIN with non-equi join key it is being merged with other joins. Merge
> logic should check such cases and avoid merging.
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