presto-main/src/main/java/io/prestosql/sql/planner/optimizations/ImplementIntersectAndExceptAsUnion.java/ImplementIntersectAndExceptAsUnion/ImplementIntersectAndExceptAsUnion
class ImplementIntersectAndExceptAsUnion:    public ImplementIntersectAndExceptAsUnion(Metadata metadata)
    {
        this.metadata = metadata;
    }