Обсуждение: Re: [pgsql-hackers-win32] [PATCHES] fork/exec patch

Magnus Hagander wrote:

>
>Absolutely, but there are other signals to send, no? Or you might want
>to send a signal directly to a backend (to cancel for example), as you
>can do on Unix.
>
>  
>

In normal operation the only thing that should be signalling a backend 
is the postmaster.

cheers

andrew

Andrew Dunstan <andrew@dunslane.net> writes:
> In normal operation the only thing that should be signalling a
> backend is the postmaster.

Oh? What about LISTEN/NOTIFY?

-Neil

Neil Conway kirjutas K, 17.12.2003 kell 00:37:
> Andrew Dunstan <andrew@dunslane.net> writes:
> > In normal operation the only thing that should be signalling a
> > backend is the postmaster.
> 
> Oh? What about LISTEN/NOTIFY?

IIRC cancelling queries is done by making a connection to a new backend
and then this backend signalls the one needing to have its query
cancelled. Or is the cancelling done by postmaster without starting a
new backend ?

--------------
Hannu