<?php
require_once(dirname(__FILE__) . '/../../wp-config.php');
require_once(dirname(__FILE__) . '/../../wp-includes/wp-db.php');

$wpdb->show_errors();

$dupes = $wpdb->get_results('select bad_rows.*
from wp_posts as bad_rows
inner join (
select post_title, MIN(id) as min_id
from wp_posts
group by post_title
having count(*) > 1
) as good_rows on good_rows.post_title = bad_rows.post_title
and good_rows.min_id <> bad_rows.id;
');

foreach ($dupes as $dupe) {
	echo $dupe->post_title ."\n";
}


$wpdb->query('
delete bad_rows.*
from wp_posts as bad_rows
inner join (
select post_title, MIN(id) as min_id
from wp_posts
group by post_title
having count(*) > 1
) as good_rows on good_rows.post_title = bad_rows.post_title
and good_rows.min_id <> bad_rows.id;
');
?>