replication

Are there any type of replication features in postgresql 7.0?

I would like it where two databases have the same structure, but say at
midnight every night Database 1 synchs up database 2.

Granted, I could always write code to do that, but it wouldn't be very
sophisticated.  (If I coded it,  would do something like find rows in table
1 which aren't in the second database, append them database two, same with
the second table, etc.)

Adam Lang
Systems Engineer
Rutgers Casualty Insurance Company