On Thu, 20 Sep 2001, Tom Lane wrote:
> This is what SELECT DISTINCT ON was invented for. I don't know any
> comparably easy way to do it in standard SQL, but with DISTINCT ON
> it's not hard:
>
> SELECT DISTINCT ON (userid) userid, val, ts FROM table
> ORDER BY userid, ts DESC;
>
> See the DISTINCT ON example in the SELECT reference page for more info:
> http://www.ca.postgresql.org/users-lounge/docs/7.1/postgres/sql-select.html
Thanks!
I was trying some stuff with distinct on, but in combination with max(ts),
which obviously didn't work. Now it works much better =)
/Patrik Kudo