hive-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Kevin Wilfong (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HIVE-4324) ORC Turn off dictionary encoding when number of distinct keys is greater than threshold
Date Wed, 10 Apr 2013 02:28:16 GMT
Kevin Wilfong created HIVE-4324:
-----------------------------------

             Summary: 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: Serializers/Deserializers
    Affects Versions: 0.11.0
            Reporter: Kevin Wilfong
            Assignee: Kevin Wilfong


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.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira

Mime
View raw message