Off the top of my head:
Could you wrap it in a function:
CREATE FUNCTION rs_nt() RETURNS int4 AS '
BEGIN
RAISE NOTICE ''hello world'';
RETURN 0;
END;
' LANGUAGE 'plpgsql';
Then select this in the rule ( ie: DO (SELECT rs_nt()) )
Or:
CREATE FUNCTION rs_trig() RETURNS OPAQUE AS '
BEGIN
RAISE NOTICE ''hello world'';
RETURN NEW;
END;
' LANGUAGE 'plpgsql';
And execute it as a trigger function on INSERT/UPDATE (You'd have to replace
NEW with OLD for DELETE, OR make it an after trigger and return NULL).
There might be a way to RAISE without function overhead but I'm afraid I'm
not aware of it.
Hope this helps,
- Stuart
> -----Original Message-----
> From: matthew.copeland@honeywell.com [SMTP:matthew.copeland@honeywell.com]
> Sent: Tuesday, August 21, 2001 10:14 PM
> To: PostgreSqlAdmin
> Subject: ERROR: Conditional NOTIFY is not implemented
>
>
> I have a set of rules that worked in 7.0.3 for async notification. Those
> same set of rules don't seem to be working under 7.1.2. The rules look
> like this.
>
> CREATE RULE CONFIG_CHNG AS ON INSERT TO gs_config DO (NOTIFY
> CONFIG_CHANGE);
> CREATE RULE CONFIG_CHNG AS ON UPDATE TO gs_config DO (NOTIFY
> CONFIG_CHANGE);
> CREATE RULE CONFIG_CHNG AS ON DELETE TO gs_config DO (NOTIFY
> CONFIG_CHANGE);
>
> Here is a look at what my session looks like.
>
> bash# psql config
> Welcome to psql, the PostgreSQL interactive terminal.
>
> Type: \copyright for distribution terms
> \h for help with SQL commands
> \? for help on internal slash commands
> \g or terminate with semicolon to execute query
> \q to quit
>
> config=# insert into gs_config values ('Life','42');
> INSERT 18842 1
> config=# update gs_config set config_value='0' where config_name='Life';
> ERROR: Conditional NOTIFY is not implemented
> config=# delete from gs_config where config_name='Life';
> ERROR: Conditional NOTIFY is not implemented
> config=# \q
>
>
> Obviously, this isn't what I desired to have happen. :) Anyone have any
> ideas on either a way that I can get around this little feature? I really
> really need the async notification stuff.
>
> Thanks,
> Matthew M. Copeland
>
>
