SQL Question - Mailing list pgsql-general

From Matthew
Subject SQL Question
Date
Msg-id 183FA749499ED311B6550000F87E206C1FD01D@srv.ctlno.com
Whole thread Raw
List pgsql-general
In 7.0.3 I want to do:

select count( distinct browser, ssn) from applicant_sessions where browser
like '%5.5%';

But I get this error:

ERROR:  Aggregate functions may only have one parameter

In 7.1 I can do:
select count(*) from (select distinct browser, ssn from applicant_sessions
where browser like '%5.5%') as distinctbrow;

to get the desired result, but I can't do that in 7.0.x.  Any suggestions?
Am I doing anything wrong with my sql syntax.  I'm working around it right
now by doing a pg_numrows from PHP after I do the first select, but I would
like to get the count directly as it will be faster.

Thanks,

Matt

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