From: Andrea Visinoni <a.visinoni@autron.it>
To: pgsql-sql@postgresql.org
Subject: plpgsql loop question
Date: Wed, 10 Feb 2010 17:29:18 +0100
Message-ID: <4B72DEDE.3070507@autron.it> (raw)
hi,
i have a table called "zones": idzone, zone_name
and several tables called zonename_records (same structure), where
zonename is one of the zone_name in the "zones" table.
What i want to do is a function that union all of this tables
dinamically based on "zones" table, this is what i've done so far:
CREATE OR REPLACE FUNCTION get_all_records()
RETURNS SETOF record AS
$BODY$DECLARE
zones record;
recs record;
BEGIN
for zones in select lower(zone_name) as n from zones loop
for recs in select * from quote_ident(zones.n || '_records') loop
return next recs;
end loop;
end loop;
RETURN;
END;
$BODY$
LANGUAGE 'plpgsql' VOLATILE
COST 100;
but i get this error!
ERROR: wrong record type supplied in RETURN NEXT
CONTEXT: PL/pgSQL function "get_all_records" line 9 at RETURN NEXT
Andrea
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To: pgsql-sql@postgresql.org
Cc: a.visinoni@autron.it
Subject: Re: plpgsql loop question
In-Reply-To: <4B72DEDE.3070507@autron.it>
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