I'm trying to create a function which returns a result set using a dynamic
query. The problem occurs when it compiles. I suspect it's my quoting,
but I'm not sure of the cause.

CREATE OR REPLACE FUNCTION LoginCounts(int) RETURNS SETOF
logincounts_record AS '
DECLARE
MaxDays ALIAS for $1;

r logincounts_record%rowtype;
i integer;

BEGIN
FOR i IN 1..MaxDays LOOP
EXECUTE ''
SELECT count(*)
INTO r
FROM users
WHERE lastlogin between current_date - interval \''' ||
quote_literal(i - 1) || '' days\'
AND current_date - interval \''' ||
quote_literal(i) || '' days\''';

RETURN NEXT r;
END LOOP;
RETURN;
END
'
LANGUAGE plpgsql;

# select * from LoginCounts(2);
WARNING: Error occurred while executing PL/pgSQL function logincounts
WARNING: line 9 at execute statement
ERROR: parser: parse error at or near "days" at character 151

thnks

--
Dan Langille - http://www.langille.org/