SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 4)
   ExpressionList (children 1)
    Identifier number
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier system.numbers
   Function equals (children 1)
    ExpressionList (children 2)
     Function reinterpretAsString (children 1)
      ExpressionList (children 1)
       Identifier number
     Literal \'Ё\'
   Literal UInt64_1