Parsed test spec with 3 sessions

starting permutation: s0_init s0_begin s0_insert1 s1_init s2_checkpoint s2_get_changes_slot0 s0_insert2 s0_commit s1_get_changes_slot0 s1_get_changes_slot1
step s0_init: SELECT 'init' FROM pg_create_logical_replication_slot('slot0', 'test_decoding');
?column?
--------
init    
(1 row)

step s0_begin: BEGIN;
step s0_insert1: INSERT INTO tbl VALUES (1);
step s1_init: SELECT 'init' FROM pg_create_logical_replication_slot('slot1', 'test_decoding'); <waiting ...>
step s2_checkpoint: CHECKPOINT;
step s2_get_changes_slot0: SELECT data FROM pg_logical_slot_get_changes('slot0', NULL, NULL, 'skip-empty-xacts', '1', 'include-xids', '0');
data
----
(0 rows)

step s0_insert2: INSERT INTO tbl VALUES (2);
step s0_commit: COMMIT;
step s1_init: <... completed>
?column?
--------
init    
(1 row)

step s1_get_changes_slot0: SELECT data FROM pg_logical_slot_get_changes('slot0', NULL, NULL, 'skip-empty-xacts', '1', 'include-xids', '0');
data                                     
-----------------------------------------
BEGIN                                    
table public.tbl: INSERT: val1[integer]:1
table public.tbl: INSERT: val1[integer]:2
COMMIT                                   
(4 rows)

step s1_get_changes_slot1: SELECT data FROM pg_logical_slot_get_changes('slot1', NULL, NULL, 'skip-empty-xacts', '1', 'include-xids', '0');
data
----
(0 rows)

?column?
--------
stop    
(1 row)