SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectIntersectExceptQuery (children 2)
   SelectWithUnionQuery (children 1)
    ExpressionList (children 2)
     SelectQuery (children 2)
      ExpressionList (children 2)
       Identifier n1
       Identifier n2
      TablesInSelectQuery (children 1)
       TablesInSelectQueryElement (children 1)
        TableExpression (children 1)
         TableIdentifier morton_numbers_3_02457
     SelectQuery (children 2)
      ExpressionList (children 2)
       Identifier n1
       Identifier n2
      TablesInSelectQuery (children 1)
       TablesInSelectQueryElement (children 1)
        TableExpression (children 1)
         TableIdentifier morton_numbers_3_02457
   SelectWithUnionQuery (children 1)
    ExpressionList (children 1)
     SelectIntersectExceptQuery (children 2)
      SelectQuery (children 2)
       ExpressionList (children 2)
        Identifier n1
        Identifier n2
       TablesInSelectQuery (children 1)
        TablesInSelectQueryElement (children 1)
         TableExpression (children 1)
          TableIdentifier morton_numbers_3_02457
      SelectQuery (children 2)
       ExpressionList (children 2)
        Identifier n1
        Identifier n2
       TablesInSelectQuery (children 1)
        TablesInSelectQueryElement (children 1)
         TableExpression (children 1)
          TableIdentifier morton_numbers_3_02457