*** a/contrib/pgbench/pgbench.c
--- b/contrib/pgbench/pgbench.c
***************
*** 809,814 **** top:
--- 809,816 ----
  				case PGRES_TUPLES_OK:
  					break;		/* OK */
  				default:
+ 					if (strncmp("40001", PQresultErrorField(res, PG_DIAG_SQLSTATE), 5) == 0)
+ 						break;
  					fprintf(stderr, "Client %d aborted in state %d: %s",
  							st->id, st->state, PQerrorMessage(st->con));
  					PQclear(res);