InsertQuery   (children 2)
 Identifier fooR
 SelectWithUnionQuery (children 1)
  ExpressionList (children 1)
   SelectQuery (children 2)
    ExpressionList (children 2)
     Identifier number
     Function concat (children 1)
      ExpressionList (children 2)
       Literal \'R\'
       Function toString (children 1)
        ExpressionList (children 1)
         Identifier number
    TablesInSelectQuery (children 1)
     TablesInSelectQueryElement (children 1)
      TableExpression (children 1)
       Function numbers (children 1)
        ExpressionList (children 1)
         Literal UInt64_2