CREATE FUNCTION biwklyavg(text, text, text) RETURNS numeric AS ' DECLARE system ALIAS $1;
startdate ALIAS $2; enddate ALIAS $3; result numeric;
BEGIN result := (select (avg(usr) + avg(sys)) from sardata where
systemid = system and time between startdate and enddate; END;
' LANGUAGE 'sql';
Hello,
The fuction listed above gives the following error:
ERROR: parser: parse error at or near "alias"
I'm running v7.2. Any ideas? I pulled this directly from the examples in
the PostgreSQL Developer's Handbook.
Thanks,
Travis