CREATE EXTENSION pg_stat_monitor;
SELECT pg_stat_monitor_reset();
 pg_stat_monitor_reset 
-----------------------
 
(1 row)

SELECT 1 AS num;
 num 
-----
   1
(1 row)

SELECT query,application_name FROM pg_stat_monitor ORDER BY query COLLATE "C";
                                     query                                     |      application_name       
-------------------------------------------------------------------------------+-----------------------------
 SELECT $1 AS num                                                              | pg_regress/application_name
 SELECT pg_stat_monitor_reset()                                                | pg_regress/application_name
 SELECT query,application_name FROM pg_stat_monitor ORDER BY query COLLATE "C" | pg_regress/application_name
(3 rows)

SELECT pg_stat_monitor_reset();
 pg_stat_monitor_reset 
-----------------------
 
(1 row)

DROP EXTENSION pg_stat_monitor;