On Fri, Jun 10, 2011 at 2:10 PM, Marc Munro <marc@xxxxxxxxxxxx> wrote: > I'd like to be able to wait for notify events using a user-defined C > function. All of the examples and code I can find use libpq. > > Is there some way I can synchronously wait for notify events using SPI? > > Is there some reason this is a dumb idea? I wondered about the risk of > deadlocking a backend but can't see why using libpq would eliminate this > risk. Unfortunately, this is not a good idea. The problem is that SPI functions are in a single transaction for the duration of their lifetime. You have to do it in the client -- a hypothetical future 'stored procedure' implementation may be able to do this -- see extensive, albeit inconclusive, fairly recent discussion on -hackers. merlin -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
