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jashkenas
on April 28, 2013
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Rails 4 UUID primary keys with PostgreSQL
What's the advantage of a sequential UUID over an auto-incrementing integer?
(Keeping in mind that both can be started at N on different shards, or prefixed.)
axelfontaine
on April 28, 2013
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You can merge any two data buckets, without any risk of id collision.
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(Keeping in mind that both can be started at N on different shards, or prefixed.)