## dblink\_disconnectdblink\_disconnect — closes a persistent connection to a remote database## Synopsis```dblink_disconnect() returns textdblink_disconnect(text connname) returns text```## Description`dblink_disconnect()` closes a connection previously opened by `dblink_connect()`. The form with no arguments closes an unnamed connection.## Arguments*`connname`* The name of a named connection to be closed.## Return Value Returns status, which is always `OK` (since any error causes the function to throw an error instead of returning).## Examples```SELECT dblink_disconnect(); dblink_disconnect
