On 2/27/23 08:48, Tom Lane wrote:
> Adrian Klaver <adrian.klaver@aklaver.com> writes:
>> On 2/27/23 08:36, Tom Lane wrote:
>>> If it was based on something like "du", perhaps the measurement
>>> was fooled by the fact that most of the data files will be hard-linked
>>> between the old and new clusters.
>
>> Does that happen without the --link option?
>
> No, but the OP didn't mention whether he used that, and even if he
> didn't say it explicitly the pg_upgradecluster wrapper might've
> supplied it.
Alright the OP's command was:
pg_upgradecluster 9.6 main
pg_upgradecluster needs the --link(-k) option to use link instead of copy.
>
> regards, tom lane
--
Adrian Klaver
adrian.klaver@aklaver.com
