Does freeradius support considering a session as ended if enough accounting packets are missed?

[Alan DeKok]

Erik Andersen wrote:
> I'm not sure what you mean by setting the value by an update statement.

  The "update" sections allow you to set attributes.  This is documented.

> Could you give an example of how to do this? Ideally, I would like to
> save it if it exists, and if not, just insert a NULL or empty string.

  See the existing SQL accounting queries.  They do this lots.

  See also "man unlang".  Look for "Conditional Syntax".

  Alan DeKok.