PostgreSQL client library (libpq) binding
Documents: https://mdref.m6w6.name/pq
Highlights:
* Nearly complete support for asynchronous usage:
https://mdref.m6w6.name/pq/Connection/%3A%20Asynchronous%20Usage
* Extended type support by pg_type:
https://mdref.m6w6.name/pq/Types/%3A%20Overview
* Fetching simple multi-dimensional array maps:
https://mdref.m6w6.name/pq/Result/map
* Working Gateway implementation:
https://mdref.m6w6.name/pq-gateway
License: BSD-2-Clause