pg_upgrade 9.6 to 12 without 9.6 binaries

From: "Zwettler Markus (OIZ)" <Markus(dot)Zwettler(at)zuerich(dot)ch>
To: pgsql-general <pgsql-general(at)postgresql(dot)org>
Subject: pg_upgrade 9.6 to 12 without 9.6 binaries
Date: 2020-03-13 13:47:26
Message-ID: 6146ebd5ca12450abe0e1efe57bab8c2@zuerich.ch
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We are running Postgres 9.6 on server A.

We want to upgrade it to Postgres 12 on server B.

pg_upgrade requires the old (-b) and new (-B) binary set on the same server.

We don't want to install both binary sets on the same server as we had some library conflicts in the past.

Is there still a way to use pg_upgrade without the old (-b) binary set (I am aware of pg_dump/pg_restore)?

Markus

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