Re: Generate user/group sysids from a sequence?

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От Robert Treat
Тема Re: Generate user/group sysids from a sequence?
Дата
Msg-id 1042831345.2124.6.camel@camel
обсуждение исходный текст
Ответ на Re: Generate user/group sysids from a sequence?  (Bruce Momjian <pgman@candle.pha.pa.us>)
Ответы Re: Generate user/group sysids from a sequence?  (Tom Lane <tgl@sss.pgh.pa.us>)
Список pgsql-hackers
Have we decided it's really too difficult to remove all references to a
given sysid when the user is dropped? It seems like we're creating
multiple new problems in an effort to workaround one existing problem.

Robert Treat

On Fri, 2003-01-17 at 12:38, Bruce Momjian wrote:
> Tom Lane wrote:
> > Bruce Momjian <pgman@candle.pha.pa.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.
> 
> -- 
>   Bruce Momjian                        |  http://candle.pha.pa.us
>   pgman@candle.pha.pa.us               |  (610) 359-1001
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