Foreign Data Wrappers (FDW)#
In 2003, SQL was expanded to include SQL/MED (SQL Management of External Data). PostgreSQL 9.1 supports this read-only, 9.3 then also write. Since then, a number of Foreign Data Wrappers (FDW) have been developed for PostgreSQL.
The following is just a small selection of the best-known FDWs:
Most of these wrappers are not officially supported by the PostgreSQL Global Development Group (PGDG).