* parse arrays out of PQgetvalue
* listenAsync & notifyAsync
-* LOBs
* COPY
* transaction savepoints
* transaction snapshots
* pq\Event\Result\Destroy,
* pq\Event\Connection\Destroy
+* bound columns/variables
* fetchInto/fetchCtor?
* unlisten?
* pq\Result->__clone through PQcopyResult?
* LOB stream wrapper
+* LOB convenience import/export over php streams
+
+* check PQresult listeners for PGresults immediately cleared after PQexec...