Database file compatability

If a database is created with a 64 bit version of initdb, would a 32bit
backend be able to talk to it? Likewise, would a backend compiled by a
different compiler be able to?

If there was some kind of incompatability, would the backend just refuse
to start, or would it start and start silently trashing data?
-- 
Jim C. Nasby, Sr. Engineering Consultant      jnasby@pervasive.com
Pervasive Software      http://pervasive.com    work: 512-231-6117
vcard: http://jim.nasby.net/pervasive.vcf       cell: 512-569-9461