From: | "Jeff Boes" <jboes(at)nexcerpt(dot)com> |
---|---|
To: | pgsql-sql(at)postgresql(dot)org |
Subject: | NOTIFY "string" from rule |
Date: | 2001-06-22 19:18:31 |
Message-ID: | 9h05l0$1bke$1@news.tht.net |
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Thread: | |
Lists: | pgsql-sql |
Say my table looks like:
CREATE TABLE foo(status char(5), name char(5));
and I want to have a rule that does this:
CREATE RULE nf_foo AS
ON INSERT TO foo DO
NOTIFY new.status || '_' || new.name;
Any hints? My first attempt was to write a function:
CREATE FUNCTION bar(foo) RETURNS TEXT AS
'SELECT $1.status || ''_'' || $1.name;'
LANGUAGE 'sql';
and then change the last line of the rule to
NOTIFY bar(new);
but no luck. I would like to avoid writing a bunch of rules to process
each combination of 'status' and 'name' (at least they're each a limited
set!).
--
Jeff Boes vox 616.226.9550
Database Engineer fax 616.349.9076
Nexcerpt, Inc. jboes(at)nexcerpt(dot)com
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