Doh! Sorry my code DOES have the FOR in it as does the example in the
book. Neither works though.
My apologies this was my second attempt w/o the FOR.
Here's what I really have:
CREATE FUNCTION biwklyavg(text, text, text) RETURNS numeric AS ' DECLARE system ALIAS
FOR$1; startdate ALIAS FOR $2; enddate ALIAS FOR $3; result
numeric;
BEGIN result := (select (avg(usr) + avg(sys)) from sardata
where systemid = system and time between startdate and enddate; END;
' LANGUAGE 'sql';
-----Original Message-----
From: PG Explorer [mailto:pgmail@pgexplorer.com]
Sent: Wednesday, March 27, 2002 3:06 PM
To: Travis Hoyt; pgsql-sql@postgresql.org
Subject: Re: [SQL] function error
Needs a FOR!!
system ALIAS FOR $1;
Strange that the sample is wrong?
http://www.pgexplorer.com
----- Original Message -----
From: "Travis Hoyt" <thoyt@npc.net>
To: <pgsql-sql@postgresql.org>
Sent: Wednesday, March 27, 2002 9:59 PM
Subject: [SQL] function error
> 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
>
