PgDB: add INFO log message on server connection

mylib/pgsql.py

@@ -81,6 +81,9 @@ class PgDB:
         """ Connect to PostgreSQL server """
         if self._conn is None:
             try:
+                log.info(
+                    'Connect on PostgreSQL server %s as %s on database %s',
+                    self._host, self._user, self._db)
                 self._conn = psycopg2.connect(
                     dbname=self._db,
                     user=self._user,