________________________________
From: Stephen Frost <sfr...@snowman.net>
To: Patrick Dung <patrick_...@yahoo.com.hk>
Cc: "pgsql-general@postgresql.org" <pgsql-general@postgresql.org>; Ivan Voras
<ivo...@freebsd.org>; Tom Lane <t...@sss.pgh.pa.us>
Sent: Saturday, September 14, 2013 12:43 AM
Subject: Re: [GENERAL] Major upgrade of PostgreSQL and MySQL
* Patrick Dung (patrick_...@yahoo.com.hk) wrote:
>> The problem of pg_upgrade is that it needed to hold two set of databases
>> data in the server.
>What? That's absolutely *not* required for pg_upgrade to work. In
>general, I would recommend that you make a copy of the database, but
>it's certainly not required.
I mean the old version and new version would need to take up disk space on the
server.
Thus roughly doubled the disk space used.
Thanks,
Patrick
