[Zope-DB] Invalidating ZSQL Method Cache

[Jesse Pavel]

Hi,

If I know that the cached value for an SQL query that a
ZSQL Method is storing has become stale, is there any way
that I can invalidate that cache item so that the next
time the method is run it queries the RDBMS?

I suppose I could write an external method to poke around
in the DA.DA instance, but that doesn't seem to be too
robust a solution.

Thanks for any help,
Jesse