Re: Possible bug in ECPGlib thread-safety (Postgres

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: Philip Yarra <philip(at)utiba(dot)com>
Cc: Demetres Pantermalis <dpant(at)intracom(dot)gr>, pgsql-interfaces(at)postgresql(dot)org
Subject: Re: Possible bug in ECPGlib thread-safety (Postgres
Date: 2003-12-16 01:28:22
Message-ID: 200312160128.hBG1SMr20109@candle.pha.pa.us
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Philip Yarra wrote:
> On Tue, 16 Dec 2003 12:08 pm, Bruce Momjian wrote:
> > I have updated the 7.4.X does and CVS head docs to mention that ecpg SET
> > CONNECTION is not thread-aware, and I have added this to the ecpg TODO:
> >
> > o Make SET CONNECTION thread-aware
>
> One thing that concerns me: I doubt this is supported in other database
> systems... people who relied on this feature in ECPG would likely encounter
> threading bugs if they port their code to other DBs. And threading bugs can
> be nasty to find. Does anyone know how other DBs handle this issue?
>
> I thinks it's a worthy feature, but perhaps the pre-compiler should warn
> people that they are relying on non-standard behaviour?

It would cause people moving _from_ PostgreSQL, but no one does that, of
course. :-)

I thought the standard wasn't clear so we could do it. You have a good
point, but that AT clause is annoying people. Other comments?

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