SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function hex (children 1)
     ExpressionList (children 1)
      Function UUIDStringToNum (children 1)
       ExpressionList (children 2)
        Literal \'00112233-4455-6677-8899-aabbccddeeff\'
        Literal UInt64_2