This may be an antiquated topic, but I'm still a little fuzzy on this 64bit vs 
32bit thing when it comes to performance.  I know that 32 bit operating systems 
and software can run faster than the 64 bit OS and software in certain 
environments.  However, I'm curious if a Postgres server handling dbmail would 
qualify as one of those faster on 32 bit, or on 64 bit.

I do see in the Postgres Solaris FAQ:    

    "And on other hand,32-bit code on the AMD64 CPU family is not native, and 
that is why 32-bit code is significant slower on this CPU family."

I guess if my processor ends up being either an Opteron or modern Xeon that 
would settle this.. . . . But if someone has a very firm understanding of this 
that could confirm, that would be appreciated.




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