TE_DEFINE_VISITABLE ST_Difference(Expression *arg1, Expression *arg2)
Constructor.
BinaryFunction & operator=(const BinaryFunction &rhs)
ST_Difference & operator=(const ST_Difference &rhs)
This is an abstract class that models a query expression.
Spatial difference operator.
Spatial difference operator.
Expression * clone() const
It creates a new copy of this expression.
A base class for binary functions.