junaid malik wrote:
Is there any alternative of mysql function COUNT(DISTINCT expr,
[expr...]) in postgres. We get error if we
write count like this count(distinct profile.id, profile.name,
profile.age) but it works well in mysql.
Reference url is given below
http://dev.mysql.com/doc/refman/5.1/en/group-by-functions.html#function_count-distinct
Thanks
I already answered your question on dbforums.com. But in Postgres you
can do:
SELECT COUNT( DISTINCT row(col1, col2, col3) ) FROM foo
or
SELECT COUNT( DISTINCT (col1, col2, col3) ) FROM foo
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