From: "Rudi Starcevic" <rudi@oasis.net.au>
To: pgsql-sql@postgresql.org
Subject: PLPGSQL errors
Date: Wed, 9 Oct 2002 20:06:33 +1000
Message-Id: <20021009100633.M18916@oasis.net.au>
MIME-Version: 1.0
Content-Type: text/plain; charset=iso-8859-1


Hi,

I'm getting an error on a function I want to execute and I can't see why.
I've tried a few different things and tweaked my sql without joy so far.
I want to log all inserts or updates on one table to another table.

Below I have my error, function , table schema and sql insert statement.
Thanks
It's a little long and I know anyone on this list has enough work of their
own but what goes around comes around :-)

error:
[postgres@central postgres]$ /usr/local/pgsql/bin/psql demo -f sysinsert.sql
psql:sysinsert.sql:16: NOTICE:  Error occurred while executing PL/pgSQL
function fn_sysmessages_log
psql:sysinsert.sql:16: NOTICE:  at END of toplevel PL block
psql:sysinsert.sql:16: ERROR:  control reaches end of trigger procedure
without RETURN

function :
CREATE function fn_sysmessages_log() RETURNS OPAQUE AS '
BEGIN
INSERT INTO sysmessages_log
       (
       id,
       user_id,
       message_date,
       message_priority,
       message,
       status
       )
VALUES
        (
        NEW.id,
        NEW.user_id,
        NEW.message_date,
        NEW.message_priority,
        NEW.message,
        NEW.status
        );
END;
' LANGUAGE 'plpgsql';

CREATE TRIGGER tr_sysmessages_log AFTER INSERT OR UPDATE ON sysmessages FOR
EACH ROW EXECUTE PROCEDURE fn_sysmessages_log();

and my 2 tables :

create table sysmessages
(
    id serial PRIMARY KEY,
    user_id integer NOT NULL,
    message_date date DEFAULT now() NOT NULL,
    message_priority char(1) CHECK( message_priority IN (1,2,3,4,5,6,7,8,9) )
NOT NULL,
    message text NOT NULL,
    status char(1) CHECK( status IN ('A','P','N') ) NOT NULL
);

create table sysmessages_log
(
    log_id serial PRIMARY KEY,
    id integer,
    user_id integer NOT NULL,
    message_date date DEFAULT now() NOT NULL,
    message_priority char(1) CHECK( message_priority IN (1,2,3,4,5,6,7,8,9) )
NOT NULL,
    message text NOT NULL,
    status char(1) CHECK( status IN ('A','P','N') ) NOT NULL
);

and the insert statement which is causing the error:

INSERT INTO sysmessages
(
user_id,
message_date,
message_priority,
message,
status
)
VALUES
(
101,
'2002-10-10',
1,
'hi',
'A'
)