1 * parse arrays out of PQgetvalue
2 * listenAsync & notifyAsync
5 * transaction savepoints
6 * transaction snapshots
8 * pq\Event\Result\Create,
9 pq\Event\Result\Destroy,
10 pq\Event\Connection\Reset,
11 pq\Event\Connection\Destroy
12 * fetchInto/fetchCtor?
14 * pq\Result->__clone through PQcopyResult?
15 * db/pass/user/host/port/options properties on pq\Connection?