Re: pg_upgrade - Mailing list pgsql-bugs

From Juan José Santamaría Flecha
Subject Re: pg_upgrade
Date
Msg-id CAC+AXB2ic4nu7HsBy1GMAiURKC_-w9BYwoeqiWL6108k+AntcA@mail.gmail.com
Whole thread Raw
In response to Re: pg_upgrade  (Julien Rouhaud <rjuju123@gmail.com>)
Responses RE: pg_upgrade  (Загороднев Роман Евгеньевич <re.zagorodnev@npff.ru>)
List pgsql-bugs
On Wed, Dec 25, 2019 at 5:03 PM Julien Rouhaud <rjuju123@gmail.com> wrote:
On Wed, Dec 25, 2019 at 4:26 PM Загороднев Роман Евгеньевич
<re.zagorodnev@npff.ru> wrote:
>
> FS - NTFS.
> Used different version (10, 12) and result always the same. In log I see that links was created. But pg_upgrade copies all databases. In destination data folder I see files, not links, and if no free space on disk for copy all data, error appear while upgrade.

Unfortunately, I have no idea what encoding you used, so I can't read
the file.  I tried some windows encoding but no luck, can you send the
file in utf8 or mention which encoding you're using?  Could you also
specify the full pg_upgrade command line you're using?


Hard links are not easy to distinguish from regular files in Windows.
If you identify a file path from a relation in a user database, like so:

test=# select pg_relation_filepath(c.relname::text) from pg_class c
test-# join pg_namespace n on n.oid = c.relnamespace
test-# where n.nspname not in ('information_schema', 'pg_catalog') and c.relkind = 'r' limit 1;
 pg_relation_filepath
----------------------
 base/16384/16385
(1 row)

And then check the links of this file:

C:\> fsutil hardlink list %PGDATA%/base/16384/16385

You should see two locations. Can you please confirm this?

Regards,

Juan José Santamaría Flecha 

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