CREATE USER su WITH SUPERUSER;

SET ROLE su;
CREATE EXTENSION pg_stat_monitor;

CREATE USER u1;
CREATE USER u2;

SET ROLE su;

SELECT pg_stat_monitor_reset();
SET ROLE u1;
CREATE TABLE t1 (a int);
SELECT * FROM t1;

SET ROLE u2;
CREATE TABLE t2 (a int);
SELECT * FROM t2;

SET ROLE su;
SELECT userid, query FROM pg_stat_monitor ORDER BY query COLLATE "C";
SELECT pg_stat_monitor_reset();

DROP TABLE t1;
DROP TABLE t2;

DROP USER u1;
DROP USER u2;

DROP EXTENSION pg_stat_monitor;