Re: Listen / Notify - what to do when the queue is full
Jeff Davis <pgsql@j-davis.com>
From: Jeff Davis <pgsql@j-davis.com>
To: Greg Sabino Mullane <greg@turnstep.com>
Cc: pgsql-hackers@postgresql.org
Date: 2010-02-16T18:22:00Z
Lists: pgsql-hackers
On Tue, 2010-02-16 at 16:02 +0000, Greg Sabino Mullane wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: RIPEMD160 > > > > * We also discussed the idea of having a NOTIFY command that > > would work from Primary to Standby. > > Just curious, what's a use case for this? If you have some kind of cache above the DBMS, you need to invalidate it when a part of the database is updated. It makes sense that every reader would want to know about the update, not just those connected to the master. Regards, Jeff Davis