 the Size property is the length
of the byte array.  However, to allow for optimizations involving the
partial use of a byte array, the Offset and Size may be set to non-default
values.
<p>
For DatabaseEntry output parameters, the Size will always be set to the
length of the returned data and
the Offset will always be set to zero.
<p>
However, for DatabaseEntry input parameters the Offset and Size are set to
non-default values by the built-in tuple and serial bindings.  For example,
with a tuple or serial b