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https://issues.apache.org/jira/browse/HIVE-21278?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16772456#comment-16772456
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Hive QA commented on HIVE-21278:
--------------------------------
Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12959297/HIVE-21278.02.patch
{color:red}ERROR:{color} -1 due to build exiting with an error
Test results:
https://builds.apache.org/job/PreCommit-HIVE-Build/16149/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/16149/console
Test logs: http://104.198.109.242/logs/PreCommit-HIVE-Build-16149/
Messages:
{noformat}
Executing org.apache.hive.ptest.execution.TestCheckPhase
Tests exited with: Exception: Patch URL
https://issues.apache.org/jira/secure/attachment/12959297/HIVE-21278.02.patch
was found in seen patch url's cache and a test was probably run already on it.
Aborting...
{noformat}
This message is automatically generated.
ATTACHMENT ID: 12959297 - PreCommit-HIVE-Build
> 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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