On 27.07.2016 19:51, Rakesh Kumar wrote:
On Wed, Jul 27, 2016 at 12:47 PM, Bruce Momjian <bruce@xxxxxxxxxx> wrote:
Yes. I was saying I don't know how to improve pg_upgrade to address it.
This problem is there even in oracle/db2/sqlserver. None of them allow
rollback to the lower version
unless it is a minor version upgrade. Major version upgrade almost
definitely involves change in transaction log
(WAL) structure and hence no rollback.
Sorry, what? You can rollback to previous version of software what you had.
https://docs.oracle.com/cd/E11882_01/server.112/e23633/downgrade.htm#UPGRD007
Alex Ignatov
Postgres Professional: http://www.postgrespro.com
The Russian Postgres Company
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