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From "Hive QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-4324) ORC Turn off dictionary encoding when number of distinct keys is greater than threshold
Date Sun, 11 Aug 2013 01:41:48 GMT

    [ https://issues.apache.org/jira/browse/HIVE-4324?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13736148#comment-13736148
] 

Hive QA commented on HIVE-4324:
-------------------------------



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

Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12597316/HIVE-4324.D12045.3.patch

{color:green}SUCCESS:{color} +1 2776 tests passed

Test results: https://builds.apache.org/job/PreCommit-HIVE-Build/386/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/386/console

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.
                
> ORC Turn off dictionary encoding when number of distinct keys is greater than threshold
> ---------------------------------------------------------------------------------------
>
>                 Key: HIVE-4324
>                 URL: https://issues.apache.org/jira/browse/HIVE-4324
>             Project: Hive
>          Issue Type: Sub-task
>          Components: File Formats
>    Affects Versions: 0.11.0
>            Reporter: Kevin Wilfong
>            Assignee: Kevin Wilfong
>             Fix For: 0.12.0
>
>         Attachments: HIVE-4324.1.patch.txt, HIVE-4324.D12045.1.patch, HIVE-4324.D12045.2.patch,
HIVE-4324.D12045.2.patch, HIVE-4324.D12045.3.patch
>
>
> Add a configurable threshold so that if the number of distinct values in a string column
is greater than that fraction of non-null values, dictionary encoding is turned off.

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