-used with replace_document_by_term/delete_document_by_term. omindex uses
-U<url> as a term, and I guess I could just use that, and then map page
-names to urls when deleting a page ... only real problem being the
-hashing; a collision would be bad.
-
-At the moment, storing xapian ids in the ikiwiki index file seems like the
-best approach.
+used with replace_document_by_term/delete_document_by_term.
+Hmm, let's use a term named "P<pagename>".