SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 2)
    Function CAST (alias value) (children 1)
     ExpressionList (children 2)
      Literal Tuple_(UInt64_1, \'Value\')
      Literal \'Tuple (id UInt64, value String)\'
    QualifiedColumnsRegexpMatcher (children 2)
     Identifier value
     ColumnsTransformerList (children 1)
      ColumnsApplyTransformer
