mardi 24 mai 2016

Are postgres UUID numbers homogeneously random?

Looking at UUIDs generated as primary keys by Postgres defined by RFC 4122, ISO/IEC 9834-8:2005 (source http://ift.tt/1sO4I6V). Can we consider that these numbers are homogeneously random on all their length ?

Given this UUID :

a0eebc99-9c0b-4ef8-bb6d-6bb9bd380a11

Can we objectively assume that a0eebc99 and bd380a11 are equally as random ? If not, why ?




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