SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 2)
    Literal \'euqality of IPv4-mapped IPv6 value and IPv4 promoted to IPv6 with function:\'
    Function equals (children 1)
     ExpressionList (children 2)
      Function toIPv6 (children 1)
       ExpressionList (children 1)
        Literal \'::ffff:127.0.0.1\'
      Function IPv4ToIPv6 (children 1)
       ExpressionList (children 1)
        Function toIPv4 (children 1)
         ExpressionList (children 1)
          Literal \'127.0.0.1\'