SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 2)
    Function reinterpret (children 1)
     ExpressionList (children 2)
      Function toDecimal128 (children 1)
       ExpressionList (children 2)
        Literal UInt64_5
        Literal UInt64_2
      Literal \'Decimal128(2)\'
    Function reinterpret (children 1)
     ExpressionList (children 2)
      Literal \'1\'
      Literal \'Decimal128(2)\'