| 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: | Jan Wieck <JanWieck(at)Yahoo(dot)com>, Chris Travers <chris(at)travelamericas(dot)com>, Alvaro Herrera <alvherre(at)dcc(dot)uchile(dot)cl>, Ron Johnson <ron(dot)l(dot)johnson(at)cox(dot)net>, PostgreSQL-development <pgsql-hackers(at)postgreSQL(dot)org> |
| Subject: | Re: [GENERAL] Replication Ideas |
| Date: | 2003-08-27 03:57:26 |
| Message-ID: | 200308270357.h7R3vQQ27987@candle.pha.pa.us |
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| Lists: | pgsql-general pgsql-hackers pgsql-performance |
Tom Lane wrote:
> Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> writes:
> > If you can detect if outside transactions conflict with your
> > transaction, you should be able to determine if the outside transactions
> > conflict with each other.
>
> Uh ... not necessarily. That amounts to assuming that every xact has
> complete knowledge of the actions of every other, which is an assumption
> I'd rather not make. Detecting that what you've done conflicts with
> someone else is one thing, detecting that party B has conflicted with
> party C is another league entirely.
Yep.
--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 359-1001
+ If your life is a hard drive, | 13 Roberts Road
+ Christ can be your backup. | Newtown Square, Pennsylvania 19073
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