From: | Nailah Ogeer <ogeer(at)cs(dot)queensu(dot)ca> |
---|---|
To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Cc: | Bruno Wolff III <bruno(at)wolff(dot)to>, <pgsql-general(at)postgresql(dot)org>, <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: [HACKERS] psql |
Date: | 2003-06-20 17:32:52 |
Message-ID: | Pine.SOL.4.33.0306201328310.4641-100000@innovate |
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Lists: | pgsql-cygwin pgsql-general pgsql-hackers pgsql-patches |
Well here's the thing. Before i was trying to use ShmemInitStruct in
buf_init.c. The problem with this is that you can't shrink or grow shared
memory. That is why i switched over and just used malloc. So i seem to be
in a big dilemma, on one hand, if i use malloc, i can't keep this info i
need; and on the other if i use shmeminitstruct then i can't shrink or
grow the BP clusters.
But i will try to test your hypothesis to see if shared memory will take
care of this.
On Fri, 20 Jun 2003, Tom Lane wrote:
> Nailah Ogeer <ogeer(at)cs(dot)queensu(dot)ca> writes:
> > So what is happening is that i enter the relation ids into the BP cluster
> > linked list fine and every time i call psql, it automatically deletes.
>
> Sounds to me like you are trying to keep stuff in backend-local memory
> that needs to be in shared memory.
>
> regards, tom lane
>
> ---------------------------(end of broadcast)---------------------------
> TIP 8: explain analyze is your friend
>
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