question on cross-data center replication

From: "Dournaee, Blake" <blake(dot)dournaee(at)intel(dot)com>
To: "pgsql-novice(at)postgresql(dot)org" <pgsql-novice(at)postgresql(dot)org>
Subject: question on cross-data center replication
Date: 2011-10-12 22:24:43
Message-ID: 16E8F37F0444C34FB5098B0061DFF03223B1C6D8@rrsmsx502.amr.corp.intel.com
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Hi -

I had a general newbie type question. I am looking for a database that supports replication across datacenters that may be widely distributed.

I understand that Oracle has replication technology through "streams" and "data guard" and would like to understand a little more about the equivalent functionality in postgresql.

Specifically:
1. Does this database support replication across instances of the database?
2. How does it work at a high level?
3. How does it compare to similar functionality in mySQL or Oracle?
4. How reliable is it?

Thanks,
Blake

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