So, we have it for categories, but we don't have it for page_titles generally. Which means we're limited to the database collation and however that sorts it...

T174643 is requesting to "fix" this for ba, but I think it's more of a general problem to solve, and likely to affect other languages too...

Should we be adding a page_sortkey or similar to the page table, similar to how we do for the category links collations?