PG_FOREIGN_DATA_WRAPPER
PG_FOREIGN_DATA_WRAPPER records foreign-data wrapper definitions. A foreign-data wrapper is the mechanism by which external data, residing on foreign servers, is accessed.
Table 1 PG_FOREIGN_DATA_WRAPPER columns
PG_AUTHID.oid | |||
PG_PROC.oid | References a handler function that is responsible for supplying execution routines for the foreign-data wrapper (0 if no handler is provided) | ||
PG_PROC.oid | References a validator function that is responsible for checking the validity of the options given to the foreign-data wrapper, as well as options for foreign servers and user mappings using the foreign-data wrapper. The value is 0 if no validator is provided. | ||
Foreign-data wrapper specific option, expressed in a string in the format of keyword=value |
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