Mark Mielke <mark(at)mark(dot)mielke(dot)cc> writes:
> Kless wrote:
>> [1] http://www.mysqlperformanceblog.com/2007/03/13/to-uuid-or-not-to-uuid/
> That's a general page about UUID vs serial integers.
AFAICT the author of that page thinks that UUIDs are stored in ASCII
form (32 hex digits), which would indeed be inefficient. I have no
idea whether he knows what he's talking about with respect to mysql,
but it's certainly 100% irrelevant to the Postgres datatype.
regards, tom lane