| From: | "Magnus Hagander" <mha(at)sollentuna(dot)net> |
|---|---|
| To: | "Piotr Sulecki" <Piotr(dot)Sulecki(at)sybilla(dot)traxelektronik(dot)pl>, <pgsql-interfaces(at)postgresql(dot)org> |
| Subject: | Re: Will libpq 8 PQ*cancel functions work with 7.4 servers? |
| Date: | 2005-06-13 14:16:02 |
| Message-ID: | 6BCB9D8A16AC4241919521715F4D8BCE6C7665@algol.sollentuna.se |
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| Lists: | pgsql-interfaces |
> Ave!
>
> I'm porting an X application using asynchronous libpq calls
> from libpq version 7.4 to version 8.0. One of the things I
> have to change is the way of cancelling the queries (the old
> way, using PQrequestCancel, is marked as deprecated).
>
> My question is, will the new interface (PQgetCancel / PQcancel /
> PQfreeCancel) work with the version 7.4 server? I'd rather
> not migrate the server to 8.0 right now, it's a long and
> painful process (the database holds about 14 millions tuples).
I beleive it should. It requires the new libpq library on all machines
you're running it on, but there was no change in the client/server
communications protocol.
//Magnus
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