From: | "Plugge, Joe R(dot)" <JRPlugge(at)west(dot)com> |
---|---|
To: | Brian Modra <brian(at)zwartberg(dot)com> |
Cc: | "pgsql-sql(at)postgresql(dot)org" <pgsql-sql(at)postgresql(dot)org> |
Subject: | Re: Function Syntax Help |
Date: | 2009-10-30 19:30:49 |
Message-ID: | BD69807DAE0CE44CA00A8338D0FDD083534BA93D@oma00cexmbx03.corp.westworlds.com |
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Thread: | |
Lists: | pgsql-sql |
Thanks Brian, I changed it to this:
CREATE FUNCTION gen_simultaneous_calls(mystart timestamp, mystop timestamp) RETURNS VOID AS $$
DECLARE
mycount integer;
BEGIN
WHILE mystart < mystop + INTERVAL '1 day' LOOP
SELECT INTO mycount count(*) FROM log_calls WHERE startdate < mystart and enddate > mystop;
INSERT INTO simultaneous_calls_rpt (startdate,call_count) VALUES (mystart,mycount);
mystart := mystart + INTERVAL '1 minute';
mystop := mystop + INTERVAL '1 minute';
END LOOP;
END;
$$ LANGUAGE 'plpgsql' STABLE;
But now am getting a different error:
[postgres(at)linux1559 ~]$ cat gen_simultaneous_calls.sql | psql holly
ERROR: "$1" is declared CONSTANT
CONTEXT: compilation of PL/pgSQL function "gen_simultaneous_calls" near line 7
From: epailty(at)googlemail(dot)com [mailto:epailty(at)googlemail(dot)com] On Behalf Of Brian Modra
Sent: Friday, October 30, 2009 2:29 PM
To: Plugge, Joe R.
Cc: pgsql-sql(at)postgresql(dot)org
Subject: Re: [SQL] Function Syntax Help
2009/10/30 Plugge, Joe R. <JRPlugge(at)west(dot)com<mailto:JRPlugge(at)west(dot)com>>
I am trying to create a function that will grind through a cdr table and populate another table. I am trying to load the function and am getting the following error:
ERROR: function result type must be specified
CREATE FUNCTION gen_simultaneous_calls(mystart timestamp, mystop timestamp) AS $$ DECLARE
you need to tell it the return type. If there is none, "returns void"
e.g.
CREATE FUNCTION gen_simultaneous_calls(mystart timestamp, mystop timestamp) returns void AS $$
mycount integer;
BEGIN
WHILE mystart < mystop + INTERVAL '1 day' LOOP
SELECT INTO mycount count(*) FROM log_calls WHERE startdate < mystart and enddate > mystop;
INSERT INTO simultaneous_calls_rpt (startdate,call_count) VALUES (mystart,mycount);
mystart := mystart + INTERVAL '1 minute';
mystop := mystop + INTERVAL '1 minute';
END LOOP;
END;
$$ LANGUAGE 'plpgsql' STABLE;
Joe R. Plugge
Database Administrator, West Interactive Corporation
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