| From: | "Qingqing Zhou" <zhouqq(at)cs(dot)toronto(dot)edu> |
|---|---|
| To: | pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: Support Parallel Query Execution in Executor |
| Date: | 2006-04-10 08:38:06 |
| Message-ID: | e1d5nq$1a3m$1@news.hub.org |
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| Lists: | pgsql-hackers pgsql-patches |
"Markus Schiltknecht" <markus(at)bluegap(dot)ch> wrote
> Hi,
>
> On Sun, 2006-04-09 at 15:11 -0400, Tom Lane wrote:
> > You can't just retarget a backend to operate in another database, at
> > least not without major changes in that infrastructure.
>
> Why not? What would be needed to retarget a backend to operate in
> another database?
>
As Tom pointed out, without big change, a backend on database "D1" can't
connect to "D2". This is because to connect to a database, we need to
initialize a lot of variables. So when you reconnect to another one on the
fly, you have to change these variables one by one.
Regards,
Qingqing
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