[
https://issues.apache.org/jira/browse/HIVE-18624?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16589034#comment-16589034
]
Hive QA commented on HIVE-18624:
--------------------------------
| (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} 8m
23s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m
8s{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
12s{color} | {color:blue} ql in master has 2308 extant Findbugs warnings.
{color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
59s{color} | {color:green} master passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 1m
31s{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
38s{color} | {color:red} ql: The patch generated 3 new + 16 unchanged - 2 fixed
= 19 total (was 18) {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
23s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m
0s{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.
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 24m 49s{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-13398/dev-support/hive-personality.sh
|
| git revision | master / 09c6360 |
| Default Java | 1.8.0_111 |
| findbugs | v3.0.0 |
| checkstyle |
http://104.198.109.242/logs//PreCommit-HIVE-Build-13398/yetus/diff-checkstyle-ql.txt
|
| modules | C: ql U: ql |
| Console output |
http://104.198.109.242/logs//PreCommit-HIVE-Build-13398/yetus.txt |
| Powered by | Apache Yetus http://yetus.apache.org |
This message was automatically generated.
> Parsing time is extremely high (~10 min) for queries with complex select
> expressions
> ------------------------------------------------------------------------------------
>
> Key: HIVE-18624
> URL: https://issues.apache.org/jira/browse/HIVE-18624
> Project: Hive
> Issue Type: Bug
> Components: Hive, Parser
> Affects Versions: 3.0.0, 2.3.2
> Reporter: Amruth S
> Assignee: Zoltan Haindrich
> Priority: Major
> Attachments: HIVE-18624.01.patch, HIVE-18624.02.patch, thread_dump
>
>
> Explain of the same query takes
> 0.1 to 3 seconds in hive 2.1.0 &
> 10-15 min in hive 2.3.2 & latest master
> Sample expression below
> {code:java}
> EXPLAIN
> SELECT DISTINCT
> IF(lower('a') <= lower('a')
> ,'a'
> ,IF(('a' IS NULL AND from_unixtime(UNIX_TIMESTAMP()) <= 'a')
> ,'a'
> ,IF(if('a' = 'a', TRUE, FALSE) = 1
> ,'a'
> ,IF(('a' = 1 and lower('a') NOT IN ('a', 'a')
> and lower(if('a' = 'a','a','a')) <= lower('a'))
> OR ('a' like 'a' OR 'a' like 'a')
> OR 'a' in ('a','a')
> ,'a'
> ,IF(if(lower('a') in ('a', 'a') and 'a'='a', TRUE, FALSE) = 1
> ,'a'
> ,IF('a'='a' and unix_timestamp(if('a' = 'a',cast('a' as
> string),coalesce('a',cast('a' as string),from_unixtime(unix_timestamp()))))
> <= unix_timestamp(concat_ws('a',cast(lower('a') as string),'00:00:00')) +
> 9*3600
> ,'a'
> ,If(lower('a') <= lower('a')
> and if(lower('a') in ('a', 'a') and 'a'<>'a', TRUE, FALSE) <> 1
> ,'a'
> ,IF('a'=1 AND 'a'=1
> ,'a'
> ,IF('a' = 1 and COALESCE(cast('a' as int),0) = 0
> ,'a'
> ,IF('a' = 'a'
> ,'a'
> ,If('a' = 'a' AND
> lower('a')>lower(if(lower('a')<1830,'a',cast(date_add('a',1) as timestamp)))
> ,'a'
> ,IF('a' = 1
> ,IF('a' in ('a', 'a') and ((unix_timestamp('a')-unix_timestamp('a')) / 60)
> > 30 and 'a' = 1
> ,'a', 'a')
> ,IF(if('a' = 'a', FALSE, TRUE ) = 1 AND 'a' IS NULL
> ,'a'
> ,IF('a' = 1 and 'a'>0
> , 'a'
> ,IF('a' = 1 AND 'a' ='a'
> ,'a'
> ,IF('a' is not null and 'a' is not null and 'a' > 'a'
> ,'a'
> ,IF('a' = 1
> ,'a'
> ,IF('a' = 'a'
> ,'a'
> ,If('a' = 1
> ,'a'
> ,IF('a' = 1
> ,'a'
> ,IF('a' = 1
> ,'a'
> ,IF('a' ='a' and 'a' ='a' and cast(unix_timestamp('a') as int) + 93600 <
> cast(unix_timestamp() as int)
> ,'a'
> ,IF('a' = 'a'
> ,'a'
> ,IF('a' = 'a' and 'a' in ('a','a','a')
> ,'a'
> ,IF('a' = 'a'
> ,'a','a'))
> )))))))))))))))))))))))
> AS test_comp_exp
> {code}
>
> Taking a look at [^thread_dump] shows a very large function stack getting
> created.
> Reverting HIVE-15578 (92f31d07aa988d4a460aac56e369bfa386361776) seem to speed
> up the parsing.
>
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