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From:Paul DuBois Date:January 5 2000 5:33am
Subject:Re: Looking for distinct across multiple columns
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At 8:45 PM -0800 2000-01-04, Rob McMillin wrote:
>Running MySQL 3.22.27, is the following possible?
>
>select count(distinct column_a, column_b) from some_table group by
>column_a, column_b
>
>???


The change notes in the manual indicate that COUNT(DISTINCT col, col, ...)
was not implemented until 3.23.2.

-- 
Paul DuBois, paul@stripped
Thread
Looking for distinct across multiple columnsRob McMillin5 Jan
  • Re: Looking for distinct across multiple columnsPaul DuBois5 Jan