On Tue, Jul 17, 2012 at 06:02:40PM -0400, Bruce Momjian wrote:
> Second, the user files (large) are certainly identical, it is only the
> system tables (small) that _might_ be different, so rsync'ing just those
> would add the guarantee, but I know of no easy way to rsync just the
> system tables.

OK, new idea.  I said above I didn't know how to copy just the non-user
table files (which are not modified by pg_upgrade), but actually, if you
use link mode, the user files are the only files with a hard link count
of 2.  I could create a script that copied from the master to the slave
only those files with a link count of one.

  Bruce Momjian  <br...@momjian.us>        http://momjian.us
  EnterpriseDB                             http://enterprisedb.com

  + It's impossible for everything to be true. +

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