Re: Major upgrade of PostgreSQL and MySQL

* Patrick Dung (patrick_dkt@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