Re: [GENERAL] duplicate key value violates unique constraint andduplicated records

On 06/30/2017 07:33 AM, Timokhin Maxim wrote:

Sure, here it is.

pg_basebackup -h servername -R -P -D /data/upgrade/94 -U pgsql -v —xlog-method=stream —checkpoint=fast

/usr/pgsql-9.5/bin/initdb -D /data/upgrade/95/ —encoding=utf8 —locale=ru_RU.utf8 —lc-collate=ru_RU.utf8 —lc-ctype=ru_RU.utf8 —lc-messages=en_US.utf8

Then updating:
/usr/pgsql-9.5/bin/pg_upgrade -b /usr/pgsql-9.4/bin/ -d /data/upgrade/94 -B /usr/pgsql-9.5/bin/ -D /data/upgrade/95 -k

and so on to 9.6

The original 9.4 database has the same encoding setup?

FYI, you can use pg_upgrade to go straight from 9.4 to 9.6.

https://www.postgresql.org/docs/9.6/static/pgupgrade.html

"pg_upgrade supports upgrades from 8.4.X and later to the current major release of PostgreSQL, including snapshot and alpha releases."

after that server starts normally.


--
Timokhin 'maf' Maxim

--
Adrian Klaver
adrian.klaver@aklaver.com