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https://issues.apache.org/jira/browse/HIVE-21768?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16847995#comment-16847995
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Hive QA commented on HIVE-21768:
--------------------------------
Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12969675/HIVE-21768.4.patch
{color:green}SUCCESS:{color} +1 due to 1 test(s) being added or modified.
{color:green}SUCCESS:{color} +1 due to 16060 tests passed
Test results:
https://builds.apache.org/job/PreCommit-HIVE-Build/17305/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/17305/console
Test logs: http://104.198.109.242/logs/PreCommit-HIVE-Build-17305/
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
{noformat}
This message is automatically generated.
ATTACHMENT ID: 12969675 - PreCommit-HIVE-Build
> JDBC: Strip the default union prefix for un-enclosed UNION queries
> ------------------------------------------------------------------
>
> Key: HIVE-21768
> URL: https://issues.apache.org/jira/browse/HIVE-21768
> Project: Hive
> Issue Type: Bug
> Components: Logical Optimizer
> Affects Versions: 4.0.0, 3.1.1
> Reporter: Gopal V
> Assignee: Gopal V
> Priority: Major
> Attachments: HIVE-21768.1.patch, HIVE-21768.2.patch,
> HIVE-21768.3.patch, HIVE-21768.4.patch
>
>
> {code}
> beeline> select 1 union all select 2;
> +----------+
> | _u1._c0 |
> +----------+
> | 2 |
> | 1 |
> +----------+
> {code}
> The _u1 is superfluous and harmful to result schema parsing.
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