> echo "SELECT spcname, pg_tablespace_location(oid) FROM pg_tablespace WHERE spcname = 'fasttmp';" | sudo -u postgres psql
> echo "CREATE TABLESPACE fasttmp LOCATION '/var/lib/postgresql/temp_tablespaces';" | sudo -u postgres psql
> echo "SELECT spcname, pg_tablespace_location(oid) FROM pg_tablespace WHERE spcname = 'fasttmp';" | sudo -u postgres psql

> patronictl -c /etc/patroni/config.yml edit-config
...
postgresql:
  parameters:
    temp_file_limit: '-1'
    temp_tablespaces: fasttmp
    ...