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From "Hong Shen (Jira)" <j...@apache.org>
Subject [jira] [Created] (CALCITE-3287) Union's getRowCount in RelMdRowCount has not concern 'union all'
Date Fri, 23 Aug 2019 07:48:00 GMT
Hong Shen created CALCITE-3287:
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             Summary: Union's getRowCount in RelMdRowCount has not concern 'union all'
                 Key: CALCITE-3287
                 URL: https://issues.apache.org/jira/browse/CALCITE-3287
             Project: Calcite
          Issue Type: Bug
          Components: core
            Reporter: Hong Shen


when I read the RelMdRowCount.java, I found that union's getRowCount has not concern 'union
all', while in Union.estimateRowCount has. can any body tell me why?



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