| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Bruce Momjian <pgman(at)candle(dot)pha(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 03:37:10 |
| Message-ID: | 6358.1061955430@sss.pgh.pa.us |
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| Lists: | pgsql-general pgsql-hackers pgsql-performance |
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.
regards, tom lane
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