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 FROM pg_stat_monitor ORDER BY query COLLATE "C";
                            query                             
--------------------------------------------------------------
 SELECT $1 AS num
 SELECT pg_stat_monitor_reset()
 SELECT query FROM pg_stat_monitor ORDER BY query COLLATE "C"
(3 rows)

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

DROP EXTENSION pg_stat_monitor;