function update( $pageid, $title, $text ) {
## We don't want to index older revisions
$sql = "UPDATE pagecontent SET textvector = NULL WHERE textvector IS NOT NULL and old_id IN " .
- "(SELECT rev_text_id FROM revision WHERE rev_page = " . intval( $pageid ) .
+ "(SELECT DISTINCT rev_text_id FROM revision WHERE rev_page = " . intval( $pageid ) .
" ORDER BY rev_text_id DESC OFFSET 1)";
$this->db->query( $sql );
return true;