// for primitives loaded as default vals, check to see if was null in
// the database when loaded == remove the impl data at the same time
// to be sure we don't think the value is null after the commit
Column col = field.getColumns()[0];
if (sm.setImplData(field.getIndex(), null) == NULL)
row.whereNull(col);
else
row.whereObject(col, prevValue);
}
///////////////////////////