From: | Karel Zak <zakkr(at)zf(dot)jcu(dot)cz> |
---|---|
To: | Oliver Jowett <oliver(at)opencloud(dot)com> |
Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Kris Jurka <books(at)ejurka(dot)com>, Hans-Jürgen Schönig <postgres(at)cybertec(dot)at>, eg(at)cybertec(dot)at, List pgsql-patches <pgsql-patches(at)postgreSQL(dot)org> |
Subject: | Re: Implementing RESET CONNECTION ... |
Date: | 2005-01-04 21:00:45 |
Message-ID: | 1104872445.3597.36.camel@petra |
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Lists: | pgsql-hackers pgsql-patches |
On Wed, 2005-01-05 at 01:33 +1300, Oliver Jowett wrote:
> Karel Zak wrote:
> > I think each PG command returns some status. For example in libpq it's
> > possible check by PQcmdStatus(). I think JDBC can checks this status (by
> > own PQcmdStatus() implementation) and if PG returns string "CONNECTION-
> > RESETED" it can deallocate internal stuff. This solution doesn't require
> > touch the protocol.
>
> That could work. It's a bit ugly, though, as currently drivers don't
> need to parse command status strings (unless they want an insert OID)
I think command status is common and nice feedback for client. I think
it's more simple change something in JDBC than change protocol that is
shared between more tools.
We need some common way how detect on client what's happen on server --
a way that doesn't mean change protocol always when we add some
feature/command to backend. The command status is possible use for this.
Karel
--
Karel Zak <zakkr(at)zf(dot)jcu(dot)cz>
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