SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function equals (children 1)
     ExpressionList (children 2)
      Function URLHash (children 1)
       ExpressionList (children 2)
        Literal \'\' (alias url)
        Literal UInt64_1000
      Function URLHash (children 1)
       ExpressionList (children 1)
        Identifier url