From: | Matthias Teege <matthias(at)mteege(dot)de> |
---|---|
To: | pgsql-general(at)postgresql(dot)org |
Subject: | Trigger with delete |
Date: | 2000-06-20 13:06:37 |
Message-ID: | 200006201306.PAA17694@moon.mteege.de |
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Thread: | |
Lists: | pgsql-general |
Moin,
I want to setup a trigger that removes entries from a
related table depented an the record in the main table. So
I try the following:
CREATE FUNCTION "delete_aufpos" (int4) RETURNS int AS '
delete from subtable where key = $1'
LANGUAGE 'SQL';
CREATE TRIGGER delete_auftrag
BEFORE DELETE ON maintable FOR EACH ROW
EXECUTE PROCEDURE delete_aufpos(1);
The create function gives me the following message:
ERROR: function declared to return type int4, but final
query is not a retrieve
What is the return type of 'delete'?
How can I pass the key from the main table to the sub table?
Vielen Dank
Matthias
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