ST_DumpRings statistical function.
Spatial dump rings operator.
A base class for unary functions.
This is an abstract class that models a query expression.
UnaryFunction & operator=(const UnaryFunction &rhs)
ST_DumpRings & operator=(const ST_DumpRings &rhs)
Expression * clone() const
It creates a new copy of this expression.
TE_DEFINE_VISITABLE ST_DumpRings(Expression *arg)
Constructor.