SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Function hex (children 1)
     ExpressionList (children 1)
      Identifier i
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Function generateRandom (children 1)
       ExpressionList (children 4)
        Literal \'i FixedString(4)\'
        Literal UInt64_1
        Literal UInt64_10
        Literal UInt64_10
   Literal UInt64_10