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

CREATE TABLE foo1(a int);
CREATE TABLE foo2(a int);
CREATE TABLE foo3(a int);
CREATE TABLE foo4(a int);
SELECT pg_stat_monitor_reset();
 pg_stat_monitor_reset 
-----------------------
 
(1 row)

SELECT * FROM foo1, foo2, foo3, foo4;
 a | a | a | a 
---+---+---+---
(0 rows)

SELECT query, relations from pg_stat_monitor ORDER BY query;
                query                 |                     relations                     
--------------------------------------+---------------------------------------------------
 SELECT * FROM foo1, foo2, foo3, foo4 | {public.foo1,public.foo2,public.foo3,public.foo4}
 SELECT pg_stat_monitor_reset()       | 
(2 rows)

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

DROP TABLE foo1;
DROP TABLE foo2;
DROP TABLE foo3;
DROP TABLE foo4;
DROP EXTENSION pg_stat_monitor;