> Hi.
> I think I found a bug. My query works in mysql.
> I have 2 tables. It's for a classifieds database. 1 is the categories, and
> the second is the postings. Postings are categorised and related to a
> category. I'll dump the contents of the tables and append it to the
> message if anyone wants test data.
>
> postgres 6.4 does:
> select cl_categories.catid,cl_categories.description,count(*) from
> cl_categories,cl_postings where catid=categoryid group by catid;
> ERROR: parser: illegal use of aggregates or non-group column in target
> list
You must group by all non-aggregate fields. That includes description.
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