Re: Adding an example for replication configuration to pg_hba.conf

Two things that could be changed from this example to make it more useful:

-Document at least a little bit more how this is different from the 
"all/all" rule.  I can imagine users wondering "do I use this instead of 
the other one?  In addition?  Is it redundant if I have 'all' in there?  
A little more description here aiming at the expected FAQs here would 
make this much more useful.

-The default database is based on your user name, which is postgres in 
most packaged builds but not if you compile your own.  I don't know 
whether it's practical to consider substituting that into this file, or 
if it's just enough to mention that as an additional doc comment.

-- 
Greg Smith   2ndQuadrant US    greg@2ndQuadrant.com   Baltimore, MD
PostgreSQL Training, Services, and 24x7 Support  www.2ndQuadrant.us