Parsed test spec with 2 sessions

starting permutation: s1-insert-1 s2-insert s1-finish s2-finish
create_distributed_table

               
step s1-insert-1: 
  BEGIN;
  INSERT INTO test_locking (a) VALUES (1);

step s2-insert: 
  BEGIN;
  INSERT INTO test_locking (a) VALUES (1);
 <waiting ...>
step s1-finish: 
  COMMIT;

step s2-insert: <... completed>
error in steps s1-finish s2-insert: ERROR:  duplicate key value violates unique constraint "test_locking_a_key_102337"
step s2-finish: 
  COMMIT;

restore_isolation_tester_func