Finding duplicated thread titles

[Anatoliy]

What would be the way to find and list all threads with duplicated titles?

So far I have a repository that grabs all the threads and then in template it checks for duplicates. The good thing it checks only 20 x all threads, not all treads x all thread. The bad thing - it lists all the threads regardless if it has duplicates or not.

Code:

<xf:title>Duplicated Thread Titles</xf:title>

<xf:pagenav page="{$page}" perpage="{$perPage}" total="{$total}" link="duplicated-thread-titles"...

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