var pid = plv8.execute("select pg_backend_pid() as pid;")[0].pid,
data = Object.create(XT.Data),
lock = data.tryLock(oid, id, {pid: pid});
var pid = plv8.execute("select pg_backend_pid() as pid;")[0].pid,
data = Object.create(XT.Data),
lock = data.tryLock(oid, id, {pid: pid});