`information_schema._pg_foreign_tables.*`

show items implemented by

any at least two only one database all databases

relation	column	mysql	mariadb	tidb	postgres	cockroachdb	mssql
`_pg_foreign_tables`
	`authorization_identifier`	unsupported	unsupported	unsupported	`SQL_IDENTIFIER NULL`: 10-15	unsupported	unsupported
	`foreign_server_catalog`	unsupported	unsupported	unsupported	`SQL_IDENTIFIER NULL`: 10-15	unsupported	unsupported
	`foreign_server_name`	unsupported	unsupported	unsupported	`SQL_IDENTIFIER NULL`: 10-15	unsupported	unsupported
	`foreign_table_catalog`	unsupported	unsupported	unsupported	`SQL_IDENTIFIER NULL`: 10-15	unsupported	unsupported
	`foreign_table_name`	unsupported	unsupported	unsupported	`SQL_IDENTIFIER NULL`: 10-15	unsupported	unsupported
	`foreign_table_schema`	unsupported	unsupported	unsupported	`SQL_IDENTIFIER NULL`: 10-15	unsupported	unsupported
	`ftoptions`	unsupported	unsupported	unsupported	`ARRAY NULL`: 10-15	unsupported	unsupported