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https://issues.apache.org/jira/browse/HIVE-21278?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16772365#comment-16772365
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Hive QA commented on HIVE-21278:
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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:brown} Patch Compile Tests {color} ||
| {color:red}-1{color} | {color:red} whitespace {color} | {color:red} 0m
0s{color} | {color:red} The patch 1 line(s) with tabs. {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 1m
2s{color} | {color:green} The patch does not generate ASF License warnings.
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 2m 16s{color} |
{color:black} {color} |
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|| Subsystem || Report/Notes ||
| Optional Tests | asflicense |
| 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-16147/dev-support/hive-personality.sh
|
| git revision | master / 104fa19 |
| whitespace |
http://104.198.109.242/logs//PreCommit-HIVE-Build-16147/yetus/whitespace-tabs.txt
|
| modules | C: ql U: ql |
| Console output |
http://104.198.109.242/logs//PreCommit-HIVE-Build-16147/yetus.txt |
| Powered by | Apache Yetus http://yetus.apache.org |
This message was automatically generated.
> Fix ambiguity in grammar warnings at compilation time
> -----------------------------------------------------
>
> Key: HIVE-21278
> URL: https://issues.apache.org/jira/browse/HIVE-21278
> Project: Hive
> Issue Type: Bug
> Components: Parser
> Reporter: Jesus Camacho Rodriguez
> Assignee: Jesus Camacho Rodriguez
> Priority: Major
> Attachments: HIVE-21278.01.patch, HIVE-21278.02.patch,
> HIVE-21278.patch
>
>
> These are the warnings at compilation time:
> {code}
> warning(200): org/apache/hadoop/hive/ql/parse/HiveParser.g:2439:5:
> Decision can match input such as "KW_CHECK KW_DATETIME" using multiple
> alternatives: 1, 2
> As a result, alternative(s) 2 were disabled for that input
> warning(200): org/apache/hadoop/hive/ql/parse/HiveParser.g:2439:5:
> Decision can match input such as "KW_CHECK KW_DATE {LPAREN, StringLiteral}"
> using multiple alternatives: 1, 2
> As a result, alternative(s) 2 were disabled for that input
> warning(200): org/apache/hadoop/hive/ql/parse/HiveParser.g:2439:5:
> Decision can match input such as "KW_CHECK KW_UNIONTYPE LESSTHAN" using
> multiple alternatives: 1, 2
> As a result, alternative(s) 2 were disabled for that input
> warning(200): org/apache/hadoop/hive/ql/parse/HiveParser.g:2439:5:
> Decision can match input such as "KW_CHECK {KW_EXISTS, KW_TINYINT}" using
> multiple alternatives: 1, 2
> As a result, alternative(s) 2 were disabled for that input
> warning(200): org/apache/hadoop/hive/ql/parse/HiveParser.g:2439:5:
> Decision can match input such as "KW_CHECK KW_STRUCT LESSTHAN" using multiple
> alternatives: 1, 2
> As a result, alternative(s) 2 were disabled for that input
> {code}
> This means that multiple parser rules can match certain query text, possibly
> leading to unexpected errors at parsing time.
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