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Re: Regarding identifying a foreign scan

From: Atri Sharma <atri(dot)jiit(at)gmail(dot)com>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Pg Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Regarding identifying a foreign scan
Date: 2012-10-06 19:47:50
Message-ID: CAOeZVif6+HABCP7qa_ReY6HKmzQtDUKjOwhZ2QkOmJzidLncvQ@mail.gmail.com (view raw or flat)
Thread:
Lists: pgsql-hackers
On Sat, Oct 6, 2012 at 3:45 PM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> Atri Sharma <atri(dot)jiit(at)gmail(dot)com> writes:
>> I am trying to identify foreign scans uniquely.
>
> What do you mean by "identify"?  What are you trying to accomplish,
> and in what context?
>
>                         regards, tom lane

Hi Tom,

I am trying to identify the situation where a query has multiple
foreign scans.In that case,I need to check whether the current scan is
the same as a previous scan or not.If not,then I think it means that
multiple scans are in progress on the same backend.

Atri

-- 
Regards,

Atri
l'apprenant


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