https://stackoverflow.com/questions/722221/how-to-log-postgresql-queries

<Ubuntu 21.10> has a certain default level of logging by default to:
``
/var/log/postgresql/postgresql-13-main.log
``
but it does not log everything, only/mostly errors it seems.

Setting:
``
log_statement = 'all'
``
under:
``
/etc/postgresql/13/main/postgresql.conf
``
and then restarting the server:
``
sudo service restart postgresql
``
just works.

Realtime monitoring for long queries instead: https://stackoverflow.com/questions/8597516/app-to-monitor-postgresql-queries-in-real-time


 PostgreSQL logging