On Mon, Sep 12, 2011 at 11:26:10PM +0200, Robert Klemme wrote: > You make them sound like witchcraft. But they are clearly defined - > even standardized. Granted, different RDBMS might implement them in > different ways - here's PG's view of TX isolation: > > http://www.postgresql.org/docs/8.4/interactive/transaction-iso.html Even better: PostgreSQL 9.1 (Released yesterday! Fresher than milk...) ships an improved algorithm for serializable transaction isolation level: http://www.postgresql.org/docs/9.1/interactive/transaction-iso.html More info: http://wiki.postgresql.org/wiki/Serializable Cheers, Dr. Gianni Ciolli - 2ndQuadrant Italia PostgreSQL Training, Services and Support gianni.ciolli@xxxxxxxxxxxxxx | www.2ndquadrant.it -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
