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From "Hive QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-21278) Fix ambiguity in grammar warnings at compilation time
Date Sat, 16 Feb 2019 04:14:00 GMT

    [ https://issues.apache.org/jira/browse/HIVE-21278?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16769999#comment-16769999
] 

Hive QA commented on HIVE-21278:
--------------------------------



Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12958942/HIVE-21278.patch

{color:green}SUCCESS:{color} +1 due to 1 test(s) being added or modified.

{color:red}ERROR:{color} -1 due to 12 failed/errored test(s), 15797 tests executed
*Failed tests:*
{noformat}
org.apache.hadoop.hive.cli.TestNegativeCliDriver.testCliDriver[check_constraint_aggregate]
(batchId=100)
org.apache.hadoop.hive.cli.TestNegativeCliDriver.testCliDriver[check_constraint_max_length]
(batchId=100)
org.apache.hadoop.hive.cli.TestNegativeCliDriver.testCliDriver[check_constraint_nonboolean_expr]
(batchId=99)
org.apache.hadoop.hive.cli.TestNegativeCliDriver.testCliDriver[check_constraint_qual_name]
(batchId=101)
org.apache.hadoop.hive.cli.TestNegativeCliDriver.testCliDriver[check_constraint_subquery]
(batchId=99)
org.apache.hadoop.hive.cli.TestNegativeCliDriver.testCliDriver[check_constraint_tbl_level]
(batchId=100)
org.apache.hadoop.hive.cli.TestNegativeCliDriver.testCliDriver[check_constraint_temporary_udf]
(batchId=100)
org.apache.hadoop.hive.cli.TestNegativeCliDriver.testCliDriver[check_constraint_udtf] (batchId=99)
org.apache.hadoop.hive.cli.TestNegativeCliDriver.testCliDriver[check_constraint_violation]
(batchId=99)
org.apache.hadoop.hive.cli.TestNegativeCliDriver.testCliDriver[check_constraint_window_fun]
(batchId=99)
org.apache.hadoop.hive.cli.TestNegativeCliDriver.testCliDriver[create_external_with_check_constraint]
(batchId=99)
org.apache.hadoop.hive.cli.TestNegativeCliDriver.testCliDriver[subquery_subquery_chain] (batchId=99)
{noformat}

Test results: https://builds.apache.org/job/PreCommit-HIVE-Build/16106/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/16106/console
Test logs: http://104.198.109.242/logs/PreCommit-HIVE-Build-16106/

Messages:
{noformat}
Executing org.apache.hive.ptest.execution.TestCheckPhase
Executing org.apache.hive.ptest.execution.PrepPhase
Executing org.apache.hive.ptest.execution.YetusPhase
Executing org.apache.hive.ptest.execution.ExecutionPhase
Executing org.apache.hive.ptest.execution.ReportingPhase
Tests exited with: TestsFailedException: 12 tests failed
{noformat}

This message is automatically generated.

ATTACHMENT ID: 12958942 - 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.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
> warning(200): IdentifiersParser.g:424:5:
> Decision can match input such as "KW_UNKNOWN" using multiple alternatives: 1, 10
> As a result, alternative(s) 10 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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