Louis-David Mitterrand wrote:
Hello,
I've got a table of shows with different types (movie, theater,
ballet,etc.) and I am looking for a select that can return the 10 last
entered shows AND at most 2 of each type. Is that possible in one query?
The table looks basically like:
created_on | timestamp without time zone
show_name | text
id_show | integer
show_type | text
id_show_subtype | integer
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I thought of another solution, actually it's of those top n query tricks
that I picked up somewhere, can't remember
where.
Assuming that your table is called shows, the following query should
give you the results you want (hope so)
SELECT *
FROM shows a
WHERE 3 > (SELECT COUNT(*)
FROM shows b
WHERE b.created_on >= a.created_on
and a.show_type = b.show_type)
Mario
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