Magento customer wishlist report

CustomerWishlist.sql

SELECT b.email, c.value AS name, a.updated_at, d.added_at, d.product_id, e.name, SUM(g.qty_ordered) AS purchased FROM `wishlist` AS a INNER JOIN customer_entity AS b ON a.customer_id = b.entity_id INNER JOIN customer_entity_varchar AS c ON a.customer_id = c.entity_id AND c.attribute_id = (SELECT attribute_id FROM eav_attribute WHERE attribute_code = 'firstname' AND entity_type_id = b.entity_type_id) INNER JOIN wishlist_item AS d ON a.wishlist_id = d.wishlist_id INNER JOIN catalog_product_flat_1 AS e ON d.product_id = e.entity_id LEFT JOIN sales_flat_order AS f ON f.customer_email = b.email LEFT JOIN sales_flat_order_item AS g ON (f.entity_id = g.order_id AND g.sku LIKE CONCAT(e.sku,'%') AND g.product_type = 'simple')
GROUP BY b.email, c.value, a.updated_at, d.added_at, d.product_id, e.name

Thank you. This was very helpful.