Parsed test spec with 5 sessions

starting permutation: s1_attach_invalidate_catalog_snapshot s4_wakeup_s1_setup s3_start_create_index s1_start_upsert s4_wakeup_define_index_before_set_valid s2_start_upsert s5_wakeup_s1_from_invalidate_catalog_snapshot s4_wakeup_s2 s4_wakeup_s1
injection_points_attach
-----------------------
                       
(1 row)

injection_points_attach
-----------------------
                       
(1 row)

injection_points_attach
-----------------------
                       
(1 row)

step s1_attach_invalidate_catalog_snapshot: 
	SELECT injection_points_attach('invalidate-catalog-snapshot-end', 'wait');
 <waiting ...>
step s4_wakeup_s1_setup: 
	SELECT CASE WHEN
			(SELECT pid FROM pg_stat_activity
				  WHERE wait_event_type = 'InjectionPoint' AND
				  wait_event = 'invalidate-catalog-snapshot-end') IS NOT NULL
			THEN injection_points_wakeup('invalidate-catalog-snapshot-end')
		END;

case
----
    
(1 row)

step s1_attach_invalidate_catalog_snapshot: <... completed>
injection_points_attach
-----------------------
                       
(1 row)

step s3_start_create_index: 
	CREATE UNIQUE INDEX CONCURRENTLY tbl_pkey_duplicate ON test.tbl(i);
 <waiting ...>
step s1_start_upsert: 
	INSERT INTO test.tbl VALUES (13,now()) ON CONFLICT (i) DO UPDATE SET updated_at = now();
 <waiting ...>
step s4_wakeup_define_index_before_set_valid: 
	SELECT injection_points_detach('define-index-before-set-valid');
	SELECT injection_points_wakeup('define-index-before-set-valid');

injection_points_detach
-----------------------
                       
(1 row)

injection_points_wakeup
-----------------------
                       
(1 row)

step s2_start_upsert: 
	INSERT INTO test.tbl VALUES (13,now()) ON CONFLICT (i) DO UPDATE SET updated_at = now();
 <waiting ...>
step s5_wakeup_s1_from_invalidate_catalog_snapshot: 
	DO $$
		DECLARE
			v_waiting_pid INTEGER;
		BEGIN
		LOOP
			SELECT pid INTO v_waiting_pid
			  FROM pg_stat_activity
			 WHERE wait_event_type = 'InjectionPoint'
				   AND wait_event = 'invalidate-catalog-snapshot-end'
			 LIMIT 1;
			EXIT WHEN v_waiting_pid IS NOT NULL;
			PERFORM pg_sleep(100);
		END LOOP;
		END
	$$;

	SELECT injection_points_detach('invalidate-catalog-snapshot-end');
	SELECT injection_points_wakeup('invalidate-catalog-snapshot-end');

injection_points_detach
-----------------------
                       
(1 row)

injection_points_wakeup
-----------------------
                       
(1 row)

step s4_wakeup_s2: 
	SELECT injection_points_detach('exec-insert-before-insert-speculative');
	SELECT injection_points_wakeup('exec-insert-before-insert-speculative');

injection_points_detach
-----------------------
                       
(1 row)

injection_points_wakeup
-----------------------
                       
(1 row)

step s4_wakeup_s1: 
	SELECT injection_points_detach('check-exclusion-or-unique-constraint-no-conflict');
	SELECT injection_points_wakeup('check-exclusion-or-unique-constraint-no-conflict');

injection_points_detach
-----------------------
                       
(1 row)

injection_points_wakeup
-----------------------
                       
(1 row)

step s1_start_upsert: <... completed>
step s2_start_upsert: <... completed>
step s3_start_create_index: <... completed>