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To: "Richard Rowell" <richard@bowmansystems.com>,
	pgsql-sql@postgresql.org
Subject: Re: Recursive SETOF function
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>     SELECT INTO cid count(*) FROM providers WHERE uid =child_provider;

	Hey, hey.
	Better :

	SELECT blablah FROM providers WHERE uid = child_provider LIMIT 1;
	IF NOT FOUND THEN exit with error ELSE do your stuff

	Why scan more than 1 row when you just need existence ?
	Or :

	SELECT INTO cid parent_id FROM providers WHERE uid=cid;
	WHILE FOUND
		RETURN NEXT cid;
		SELECT INTO cid parent_id FROM providers WHERE uid=cid;
	END;

	Not sure about the While syntax but you get the idea.