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Posted to dev@carbondata.apache.org by "Jay (JIRA)" <ji...@apache.org> on 2016/07/04 01:26:10 UTC

[jira] [Created] (CARBONDATA-35) generate global dict using pre-defined dict from external column file

Jay created CARBONDATA-35:
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             Summary: generate global dict using pre-defined dict from external column file
                 Key: CARBONDATA-35
                 URL: https://issues.apache.org/jira/browse/CARBONDATA-35
             Project: CarbonData
          Issue Type: New Feature
            Reporter: Jay
            Priority: Minor


user can set colName:columnfilePath in load DML, which can provide small amount of distinct values, then carbon can use these distinct values to generate dictionary and avoid reading from large raw csv file. this is a new feature and can improve the performance.



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