Re: Does PG support in place upgrade

On Wed, Apr 27, 2016 at 10:30:41AM -0400, Bruce Momjian wrote:
> On Wed, Apr 27, 2016 at 10:24:36AM -0400, Rakesh Kumar wrote:
> > [PUsaBSKn_n] Compose (@composeio)
> > 4/26/16, 1:24 PM
> > You can now upgrade your #PostgreSQL 9.4 to 9.5 easily at Compose. buff.ly/
> > 1WRsFFu #RDBMS
> >
> >
> > Based on the above tweet it seems that PG has no native way of doing an inplace
> > upgrade of a db. How do users upgrade db of tera byte size.
>
> That web page mentions pg_upgrade, which allows in-place major upgrades
> to happen in several minutes:
>
> Whichever backup you go with, it will be be restored to a new PostgreSQL
> deployment where we may, or may not, run the pg_upgrade tool.
>
> The only _zero-downtime_ upgrade option is with logical-based
> replication like Slony.

Oh, here are the upgrade docs about Postgres:

http://www.postgresql.org/docs/9.5/static/upgrading.html

--
Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://enterprisedb.com

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