2 52.23. pg_foreign_data_wrapper #
4 The catalog pg_foreign_data_wrapper stores foreign-data wrapper
5 definitions. A foreign-data wrapper is the mechanism by which external
6 data, residing on foreign servers, is accessed.
8 Table 52.23. pg_foreign_data_wrapper Columns
20 Name of the foreign-data wrapper
22 fdwowner oid (references pg_authid.oid)
24 Owner of the foreign-data wrapper
26 fdwhandler oid (references pg_proc.oid)
28 References a handler function that is responsible for supplying
29 execution routines for the foreign-data wrapper. Zero if no handler is
32 fdwvalidator oid (references pg_proc.oid)
34 References a validator function that is responsible for checking the
35 validity of the options given to the foreign-data wrapper, as well as
36 options for foreign servers and user mappings using the foreign-data
37 wrapper. Zero if no validator is provided
41 Access privileges; see Section 5.8 for details
45 Foreign-data wrapper specific options, as “keyword=value” strings