SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 2)
    Identifier pow(four, 2)
    Identifier pow(two, 2)
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Subquery (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 1)
         SelectQuery (children 2)
          ExpressionList (children 1)
           Subquery (alias four) (children 1)
            SelectWithUnionQuery (children 1)
             ExpressionList (children 1)
              SelectQuery (children 1)
               ExpressionList (children 1)
                Function pow (children 1)
                 ExpressionList (children 2)
                  Literal UInt64_2
                  Literal UInt64_2
          ExpressionList (children 3)
           Function pow (children 1)
            ExpressionList (children 2)
             Identifier four
             Literal UInt64_2
           Literal UInt64_2 (alias two)
           Function pow (children 1)
            ExpressionList (children 2)
             Identifier two
             Literal UInt64_2
