DBConnection.disconnect

You're seeing just the callback disconnect, go back to DBConnection module for more information.

Specs

disconnect(err :: Exception.t(), state :: any()) :: :ok

Disconnect from the database. Return :ok.

The exception as first argument is the exception from a :disconnect 3-tuple returned by a previous callback.

If the state is controlled by a client and it exits or takes too long to process a request the state will be last known state. In these cases the exception will be a DBConnection.ConnectionError.

This callback is called in the connection process.