====== postgresql ======

===== 13 to 17 =====

<code bash>
docker compose stop
docker compose start db

docker compose exec -T db pg_dump -c -U nextcloud nextcloud | xz > dump.sql.xz
docker compose stop db
</code>

update compose file

<code bash>
docker compose up -d db
xzcat dump.sql.xz | docker compose exec -T db psql -U nextcloud
</code>

Note: if ''config.php'' contains old ''oc_admin'' user, change it to ''nextcloud'' user and corresponding password.