If somebody is interested in connection to various JDBC-compatible
databases through postgres_fdw,
please look at my pq2jdbc project: https://github.com/postgrespro/pq2jdbc
Details of the project are in README file.
If somebody can find some other use cases for libpq to JDBC adapter,
please let me know!
--
Konstantin Knizhnik
Postgres Professional: http://www.postgrespro.com
The Russian Postgres Company