This repo contains code that is a fusion between the postgresql_fdw that is distributed with PostgreSQL 9.4 and JDBC_FDW found here, that was based on an older version of PostgreSQL and has not been maitained.
The first goal with this code is to be able use the Query deparser to combine conditions from the submitted query and the defintion of the the foreign table, so conditions are evaluated remotely, rather than ignored by the remote and applied locally as is the case with JDBC_FDW.
Later on the DML support for Insert/Update/Delete over JDBC might be added.