Обнаружил довольно много неиспользованных записей.
Код:
SELECT * FROM locales_creature WHERE entry NOT IN (SELECT entry FROM creature_template)
SELECT * FROM locales_gameobject WHERE entry NOT IN (SELECT entry FROM gameobject_template)
SELECT * FROM locales_item WHERE entry NOT IN (SELECT entry FROM item_template)
SELECT * FROM locales_npc_text WHERE entry NOT IN (SELECT ID FROM npc_text)
SELECT * FROM locales_page_text WHERE entry NOT IN (SELECT entry FROM page_text)
SELECT * FROM locales_points_of_interest WHERE entry NOT IN (SELECT entry FROM points_of_interest)
SELECT * FROM locales_gossip_menu_option
LEFT JOIN gossip_menu_option ON
locales_gossip_menu_option.menu_id = gossip_menu_option.menu_id AND locales_gossip_menu_option.id = gossip_menu_option.id
WHERE gossip_menu_option.menu_id IS NULL
Решайте сами, что с ними делать (удалить или найти соответствие).