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From "Cao, Lionel (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CARBONDATA-840) Limit query performance optimization [Group By]
Date Fri, 31 Mar 2017 06:10:41 GMT
Cao, Lionel created CARBONDATA-840:
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             Summary: Limit query performance optimization [Group By]
                 Key: CARBONDATA-840
                 URL: https://issues.apache.org/jira/browse/CARBONDATA-840
             Project: CarbonData
          Issue Type: Improvement
          Components: data-query
            Reporter: Cao, Lionel
            Assignee: Cao, Lionel


Currently limit query will still scan all data first and limit in the last step. In carbon
we can convert limit to filters with dictionary distinct value list...




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