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From "Aman Sinha (JIRA)" <j...@apache.org>
Subject [jira] [Created] (DRILL-768) Support 2 phase COUNT aggregates
Date Sun, 18 May 2014 21:04:01 GMT
Aman Sinha created DRILL-768:

             Summary: Support 2 phase COUNT aggregates
                 Key: DRILL-768
                 URL: https://issues.apache.org/jira/browse/DRILL-768
             Project: Apache Drill
          Issue Type: Improvement
            Reporter: Aman Sinha

Drill currently supports 2 phase aggregation for SUM, MIN, MAX.  This enhancement is to support
2 phase COUNT aggregates.   In Phase 1 we will do partial count.  In Phase 2 we need to sum
the partial counts to produce the final count.  

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