Marco van de Voort wrote:
On Tue, May 08, 2012 at 08:01:45AM +0000, Mark Morgan Lloyd wrote:
I don't know whether it should be treated as a candidate for an
extension to the sql-db API, since as far as I know there's something
comparable (implemented very differently) on Firebird but nothing else.
If it is table or row change notifications, MSSQL has it since iirc version
2005.
It's not, PostgreSQL would probably call those triggers. It's a general
notification mechanism which can be used between programs connected to
the same database irrespective of what they're doing with tables, see
http://www.postgresql.org/docs/8.2/static/sql-notify.html (I've
intentionally referenced a fairly old version there, since recent
changes have added an additional parameter etc.).
--
Mark Morgan Lloyd
markMLl .AT. telemetry.co .DOT. uk
[Opinions above are the author's, not those of his employers or colleagues]
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