Re: Generate user/group sysids from a sequence?

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: pgsql-hackers(at)postgresql(dot)org
Subject: Re: Generate user/group sysids from a sequence?
Date: 2003-01-17 17:38:09
Message-ID: 200301171738.h0HHc9l25690@candle.pha.pa.us
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Tom Lane wrote:
> Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> writes:
> >> This way, we don't need to bother with
> >> touching the sequence at all during a CREATE USER with explicit sysid.
>
> > Well, the problem is that this could still cause the reuse of a deleted
> > user, no? Wasn't that the problem we were originally trying to solve?
>
> Hmm, yeah I guess so. Okay, we do need to compare an explicit SYSID
> setting to the sequence, and bump up the sequence if it's greater.
> Annoying, but I guess there's no choice.

Yea, I wished we could have avoided it too, but at least we are removing
the sequential scan.

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Bruce Momjian | http://candle.pha.pa.us
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