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Posted to notifications@superset.apache.org by GitBox <gi...@apache.org> on 2021/01/13 12:27:32 UTC

[GitHub] [superset] villebro commented on issue #12493: Custom SQL COUNT_DISTINCT subtraction in metrics

villebro commented on issue #12493:
URL: https://github.com/apache/superset/issues/12493#issuecomment-759416324


   `COUNT_DISTINCT(x)` is, I believe, a relic from old times, and should really be replaced by `COUNT(DISTINCT x)`. Regular count is used for counting rows, while distinct counting is used for counting unique values in the column.


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