Dave Page wrote:
> Of course, how it does that is a mystery to me - without fully
> comparing both versions, how can it create a diff? I guess that's
> what made it PhD material...
It doesn't create a diff. It computes checksums for pieces of the file
and transfers those.
Apparently, though, it first checks the modification time before doing
all that checksum stuff.
--
Peter Eisentraut
http://developer.postgresql.org/~petere/
