HighgoSoftware Inc. (Canada) just released an initial version of ORC Foreign Data Wrapper (FDW).
Apache upgraded Hive to use ORC format. ORC is a much superior format to RC and Parquet. Behind the scenes, ORC utilities Protocol Buffers which make it superior to JSON and XML format in terms of storage and read/write performance.
This initial version of ORC FDW allows read only capabilities with the option of importing schema directly from an Apache ORC file. It is a mix of C and C++ code. Feel free to pull it in from github and/or get in touch with me for more details and any help with deployment and testing of this foreign data wrapper.