From: | Kaare Rasmussen <kar(at)webline(dot)dk> |
---|---|
To: | PostgreSQL-SQL <pgsql-sql(at)postgresql(dot)org> |
Subject: | 7.1 feature? |
Date: | 2000-12-28 15:44:19 |
Message-ID: | 00122816441901.00780@bering |
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Thread: | |
Lists: | pgsql-sql |
I need to do something like this:
SELECT n.name FROM
(SELECT p.contact_seq AS contact_seq, p.lastname||', '||p.firstname AS name
FROM person p
UNION
SELECT co.name AS name FROM company co) n;
Of course there's more; this is cut from the original select.
But PostgreSQL complains about SELECT (i guess it's the SELECT in the
subquery)
In the dox I read:
A FROM item can also be a parenthesized sub-SELECT (note that an alias clause
is required for a sub-SELECT!). This is an extremely handy feature since it's
the only way to get multiple levels of grouping, aggregation, or sorting in a
single query.
Is this a 7.1 feature? Or is my typing wrong?
And will 7.1 support unions in subselects like above?
--
Kaare Rasmussen --Linux, spil,-- Tlf: 3816 2582
Kaki Data tshirts, merchandize Fax: 3816 2501
Howitzvej 75 Åben 14.00-18.00 Email: kar(at)webline(dot)dk
2000 Frederiksberg Lørdag 11.00-17.00 Web: www.suse.dk
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