SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function equals (children 1)
     ExpressionList (children 2)
      Function xxHash64 (children 1)
       ExpressionList (children 1)
        Function CAST (children 1)
         ExpressionList (children 2)
          Literal \'bar\'
          Literal \'FixedString(3)\'
      Function toUInt64 (children 1)
       ExpressionList (children 1)
        Literal UInt64_5234164152756840025