TableN results = new TableN() ;
QueryIterator iterLeft = tableLeft.iterator(execCxt) ;
for ( ; iterLeft.hasNext() ; )
{
Binding bindingLeft = iterLeft.nextBinding() ;
boolean includeThisRow = true ;
// Find a reason not to include the row.
// That's is not disjoint and not compatible.
QueryIterator iterRight = tableRight.iterator(execCxt) ;