Selecting dupes from table

Hello ,

I have table directory with 3 columns (id,url,title)

I want to list all entries with duplicate urls.

I tried this:

select id,url,title from directory where url IN
  (select url from directory group by url having count(url) > 1)
ORDER by url;

but this takes 30 seconds with 25.000 entries. I have index on url.

Can I use any other query to select this faster.


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Best regards,
 Uros                          mailto:uros@sir-mag.com