chickadee » postgresql » default-notify-handler

default-notify-handler #!optional HANDLERparameter

The handler that will be used when setting up new connections, if none was supplied to connect. This must be a procedure of three arguments, or #f if you don't want to handle notifications.

The three arguments are: A channel name (string), the PID of the backend which triggered the NOTIFY (integer) and the notification payload (string).