Re: Uber migrated from Postgres to MySQL

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От Andrew Sullivan
Тема Re: Uber migrated from Postgres to MySQL
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Msg-id 20160727180711.GF9144@crankycanuck.ca
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Ответ на Re: Uber migrated from Postgres to MySQL  (Rakesh Kumar <rakeshkumar464a3@gmail.com>)
Ответы Re: Uber migrated from Postgres to MySQL  (Rakesh Kumar <rakeshkumar464a3@gmail.com>)
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On Wed, Jul 27, 2016 at 01:58:25PM -0400, Rakesh Kumar wrote:
>
> I am surprised PG does not even allow minor version rollback.

It almost never happens that a minor version (N.M.x, x is minor)
requires an upgrade at all.  Change your binaries and you're done.
Catalogue incompatibility historically was the basis for something
becoming a major version upgrade.  (I can recall a couple bugs where
you had to tickle the catalogues, so it's not exactly true that
they're never incompatible, but it's incredibly rare.)

Best regards,

A

--
Andrew Sullivan
ajs@crankycanuck.ca


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