campo longtext repetido

[custus1]

Tengo mi PHP asi:

<?php

include('config/config.php');
include('config/db_con.php');
mysql_connect("$host", "$username", "$password")or die("cannot connect");
mysql_select_db("$db_name")or die("cannot select DB");

$sql = mysql_query("SELECT id FROM `like`
WHERE `like` IN (SELECT `like`
FROM `like`
GROUP BY `like`
HAVING Count(*)>1) LIMIT 0, 1") or die (mysql_error());


while($row=mysql_fetch_array($sql)){

$id=$row['id'];

echo $id;
}

?>

Y me da este error:

Warning: mysql_query() [function.mysql-query]: Unable to save result set in /home/custus/public_html/kkk.php on line 111
Query execution was interrupted

Que estoy haciendo mal?


Gracias!