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https://issues.apache.org/jira/browse/HIVE-8313?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14154404#comment-14154404
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Hive QA commented on HIVE-8313:
-------------------------------
{color:green}Overall{color}: +1 all checks pass
Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12672134/HIVE-8313.1.patch
{color:green}SUCCESS:{color} +1 6378 tests passed
Test results:
http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-TRUNK-Build/1064/testReport
Console output:
http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-TRUNK-Build/1064/console
Test logs:
http://ec2-174-129-184-35.compute-1.amazonaws.com/logs/PreCommit-HIVE-TRUNK-Build-1064/
Messages:
{noformat}
Executing org.apache.hive.ptest.execution.PrepPhase
Executing org.apache.hive.ptest.execution.ExecutionPhase
Executing org.apache.hive.ptest.execution.ReportingPhase
{noformat}
This message is automatically generated.
ATTACHMENT ID: 12672134
> Optimize evaluation for ExprNodeConstantEvaluator and ExprNodeNullEvaluator
> ---------------------------------------------------------------------------
>
> Key: HIVE-8313
> URL: https://issues.apache.org/jira/browse/HIVE-8313
> Project: Hive
> Issue Type: Bug
> Components: Query Processor
> Affects Versions: 0.12.0, 0.13.0, 0.14.0
> Reporter: Mithun Radhakrishnan
> Assignee: Mithun Radhakrishnan
> Attachments: HIVE-8313.1.patch
>
>
> Consider the following query:
> {code}
> SELECT foo, bar, goo, id
> FROM myTable
> WHERE id IN { 'A', 'B', 'C', 'D', ... , 'ZZZZZZ' };
> {code}
> One finds that when the IN clause has several thousand elements (and the
> table has several million rows), the query above takes orders-of-magnitude
> longer to run on Hive 0.12 than say Hive 0.10.
> I have a possibly incomplete fix.
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