Re: timeout implementation issues

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Thomas Lockhart <lockhart(at)fourpalms(dot)org>, Peter Eisentraut <peter_e(at)gmx(dot)net>, Michael Loftis <mloftis(at)wgops(dot)com>, PostgreSQL Development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: timeout implementation issues
Date: 2002-04-18 03:58:07
Message-ID: 200204180358.g3I3w7t05484@candle.pha.pa.us
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I have added this to the TODO list, with a question mark. Hope this is
OK with everyone.

o Abort SET changes made in aborted transactions (?)

---------------------------------------------------------------------------

Tom Lane wrote:
> Thomas Lockhart <lockhart(at)fourpalms(dot)org> writes:
> > I do have a concern about how to implement some of the SET commands if
> > we *do* respect transactional semantics. For example, SET TIME ZONE
> > saves the current value of an environment variable (if available), and
> > would need *at least* a "before transaction" and "after transaction
> > started" pair of values.
>
> I intended for guc.c to manage this bookkeeping, thus freeing individual
> modules from worrying about it. That would require us to transpose the
> last few special-cased SET variables into generic GUC variables, but
> I consider that a Good Thing anyway.
>
> regards, tom lane
>
> ---------------------------(end of broadcast)---------------------------
> TIP 4: Don't 'kill -9' the postmaster
>

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