PostgreSQL
52.23. pg_foreign_data_wrapper
The catalog pg_foreign_data_wrapper
stores foreign-data wrapper definitions. A foreign-data wrapper is the mechanism by which external data, residing on foreign servers, is accessed.
Table 52.23. pg_foreign_data_wrapper
Columns
Column Type Description |
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Row identifier |
Name of the foreign-data wrapper |
Owner of the foreign-data wrapper |
References a handler function that is responsible for supplying execution routines for the foreign-data wrapper. Zero if no handler is provided |
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. Zero if no validator is provided |
Access privileges; see Section 5.7 for details |
Foreign-data wrapper specific options, as “[.quote]#keyword=value”# strings |
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