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From "Hive QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-11366) Avoid right leaning tree hashCode depth during ExprNodeDescEqualityWrapper HashMaps
Date Fri, 24 Jul 2015 22:30:04 GMT

    [ https://issues.apache.org/jira/browse/HIVE-11366?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14641165#comment-14641165
] 

Hive QA commented on HIVE-11366:
--------------------------------



{color:green}Overall{color}: +1 all checks pass

Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12746946/HIVE-11366.1.patch

{color:green}SUCCESS:{color} +1 9258 tests passed

Test results: http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-TRUNK-Build/4710/testReport
Console output: http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-TRUNK-Build/4710/console
Test logs: http://ec2-174-129-184-35.compute-1.amazonaws.com/logs/PreCommit-HIVE-TRUNK-Build-4710/

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: 12746946 - PreCommit-HIVE-TRUNK-Build

> Avoid right leaning tree hashCode depth during ExprNodeDescEqualityWrapper HashMaps
> -----------------------------------------------------------------------------------
>
>                 Key: HIVE-11366
>                 URL: https://issues.apache.org/jira/browse/HIVE-11366
>             Project: Hive
>          Issue Type: Improvement
>          Components: Logical Optimizer
>    Affects Versions: 1.0.0, 1.2.0, 1.1.0, 1.1.1
>            Reporter: Gopal V
>            Assignee: Gopal V
>         Attachments: HIVE-11366.1.patch
>
>
> For a large sequence of AND clauses, the precedence order results in a deep unbalanced
tree.
> (AND A (AND B (AND C (AND D (AND E)....)
> which could result in a hashcode for the top-level expression traversing deep.



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