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https://issues.apache.org/jira/browse/HIVE-4324?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13736322#comment-13736322
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Hudson commented on HIVE-4324:
------------------------------
SUCCESS: Integrated in Hive-trunk-hadoop1-ptest #123 (See
[https://builds.apache.org/job/Hive-trunk-hadoop1-ptest/123/])
HIVE-4324 : ORC Turn off dictionary encoding when number of distinct keys is
greater than threshold (Kevin Wilfong & Owen Omalley via Ashutosh Chauhan)
(hashutosh:
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1512893)
* /hive/trunk/common/src/java/org/apache/hadoop/hive/conf/HiveConf.java
* /hive/trunk/conf/hive-default.xml.template
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/io/orc/OrcFile.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/io/orc/OutStream.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/io/orc/RecordReaderImpl.java
*
/hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/io/orc/StringRedBlackTree.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/io/orc/WriterImpl.java
* /hive/trunk/ql/src/test/org/apache/hadoop/hive/ql/io/orc/TestFileDump.java
* /hive/trunk/ql/src/test/org/apache/hadoop/hive/ql/io/orc/TestOrcFile.java
* /hive/trunk/ql/src/test/queries/clientpositive/orc_dictionary_threshold.q
* /hive/trunk/ql/src/test/resources/orc-file-dump-dictionary-threshold.out
* /hive/trunk/ql/src/test/results/clientpositive/orc_dictionary_threshold.q.out
> 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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