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

[Akash R Nilugal (Jira)]

xuchuanyin created CARBONDATA-2202:
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             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.



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