HOOKS for Synchronous Replication

Hi,

The implementation of a set of hooks for efficient synchronous replication 
without extensive patching of Postgresql source is now available at:
http://gorda.di.uminho.pt/community/

Note that this is far from a full replication product. It is made available 
for early feedback by the Postgresql hacker community and because it is 
probably already useful for other projects (e.g. materialized views).

This is the first self-contained component extracted from a working prototype 
of replication based on group communication under development by the GORDA 
project. 

Comments and suggestions welcome,

Regards Alfranio Junior.