anchor.diff:  # systemctl enable postgresql
   ---------------------------------------------------------------------
   
  -==== System level dependencies - for Suse Linux Enterprise Server 12.3
  +==== System level dependencies - for Suse Linux Enterprise Server 12.3, 15
   
   To install all required dependencies, you need following sets of DVDs (or
   other sources), or later
  
positive.code: host    all             all             ::1/128                 md5
  --------------------------------------------------------------------------------
  
  After that restart PostgreSQL:
  
  --------------------------------------------------------------------------------
  # systemctl restart postgresql
  
negative.code: 
  -- for debian/ubuntu
  # vi /etc/postgresql/*/main/postgresql.conf 
  -- for RedHat, SLES
  # vi /var/lib/pgsql/data/postgresql.conf
  
  -- Edit the max_prepared_transactions
  