SelectWithUnionQuery (children 2)
 ExpressionList (children 1)
  SelectQuery (children 4)
   ExpressionList (children 1)
    Function tuple (alias x) (children 1)
     ExpressionList (children 1)
      Function plus (children 1)
       ExpressionList (children 2)
        Identifier number
        Literal UInt64_1
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Function numbers (children 1)
       ExpressionList (children 1)
        Literal UInt64_10
   ExpressionList (children 2)
    Function plus (children 1)
     ExpressionList (children 2)
      Identifier number
      Literal UInt64_1
    Function toString (children 1)
     ExpressionList (children 1)
      Identifier x
   Set
 Identifier Null
