Oleksandr Diachenko created HAWQ-1431:
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             Summary: Do not use StatsAccessor when column specified in SELECT 
clause
                 Key: HAWQ-1431
                 URL: https://issues.apache.org/jira/browse/HAWQ-1431
             Project: Apache HAWQ
          Issue Type: Bug
          Components: PXF
            Reporter: Oleksandr Diachenko
            Assignee: Ed Espino


StatsAccessor should be used only for queries like COUNT(*) and not 
COUNT(column) because we use file-level statistics, which has a total number of 
rows, not just number of not-null values.




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