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)
        Literal \'\\0\'
      Function toUInt64 (children 1)
       ExpressionList (children 1)
        Literal UInt64_6482051057365497128