ease of use sync

on projects where i ended up selecting oracle, *my* main reasons were
(1) clustering/replication
(2) cross-database query
(3) promise of drcp
in that order

for (1), actually more for synchronization/transfer, i got a simple
suggestion:
while installing postgresql, why not ask the user to give ip of a 2nd remote
machine with the right ports open on which the installer can then repeat the
exact installation, prompt for sync frequency, and do a
pg_dumpall/pg_restore based on that frequency. so by the time you are done
installing, you got a "stand-by"! repeat that for upgrades.

it is easy to do manually (setup cron, navicat etc) but far easier when
combined during postgresql installation.