SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 5)
    Function plus (alias a) (children 1)
     ExpressionList (children 2)
      Identifier X.a
      Literal UInt64_1
    Function plus (alias Y_a) (children 1)
     ExpressionList (children 2)
      Identifier Y.a
      Literal UInt64_1
    Function plus (alias Z_a) (children 1)
     ExpressionList (children 2)
      Identifier Z.a
      Literal UInt64_1
    Function plus (alias b) (children 1)
     ExpressionList (children 2)
      Identifier Y.b
      Literal UInt64_1
    Function plus (alias Z_b) (children 1)
     ExpressionList (children 2)
      Identifier Z.b
      Literal UInt64_1
   TablesInSelectQuery (children 3)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Subquery (alias X) (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 1)
         SelectQuery (children 1)
          ExpressionList (children 1)
           Literal UInt64_10 (alias a)
    TablesInSelectQueryElement (children 2)
     TableExpression (children 1)
      Subquery (alias Y) (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 1)
         SelectQuery (children 1)
          ExpressionList (children 2)
           Literal UInt64_20 (alias a)
           Literal UInt64_21 (alias b)
     TableJoin
    TablesInSelectQueryElement (children 2)
     TableExpression (children 1)
      Subquery (alias Z) (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 1)
         SelectQuery (children 1)
          ExpressionList (children 3)
           Literal UInt64_30 (alias a)
           Literal UInt64_31 (alias b)
           Literal UInt64_32 (alias c)
     TableJoin
