vacuum full doubled database size

From: "Zwettler Markus (OIZ)" <Markus(dot)Zwettler(at)zuerich(dot)ch>
To: pgsql-general <pgsql-general(at)postgresql(dot)org>
Subject: vacuum full doubled database size
Date: 2020-03-13 13:41:28
Message-ID: 87ee68cc208c4775bd422277291fbcaf@zuerich.ch
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We did a "vacuum full" on a database which had been interrupted by a network outage.

We found the database size doubled afterwards.

Autovacuum also found a lot of orphaned tables afterwards.

The ophan temp objects went away after a cluster restart while the db size remained doubled.

Any idea?

Postgres 9.6.17

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