-* parse arrays out of PQgetvalue
-* listenAsync & notifyAsync
-* LOBs
-* COPY
-* transaction savepoints
-* transaction snapshots
-* notice receiver (else libpq uses stderr)
-* pq\Event\Notice
-
-* pq\Event\Result\Create,
- pq\Event\Result\Destroy,
- pq\Event\Connection\Reset,
- pq\Event\Connection\Destroy