You are viewing a plain text version of this content. The canonical link for it is here.

Posted to issues@carbondata.apache.org by "xuchuanyin (JIRA)" <ji...@apache.org> on 2018/02/26 02:02:00 UTC

[jira] [Created] (CARBONDATA-2202) Introduce local dictionary encoding for dimensions

xuchuanyin created CARBONDATA-2202:
--------------------------------------

             Summary: Introduce local dictionary encoding for dimensions
                 Key: CARBONDATA-2202
                 URL: https://issues.apache.org/jira/browse/CARBONDATA-2202
             Project: CarbonData
          Issue Type: Improvement
            Reporter: xuchuanyin
            Assignee: xuchuanyin


Currently Carbondata will generate global dictionary for columns with 'dictionary_include' attribute.

A dimension column without that attribute will only be stored after some simple compression. These columns can also be dictionary encoded in file level (called ‘local dictionary’) to reduce data size.



--
This message was sent by Atlassian JIRA
(v7.6.3#76005)