Constant SQL_SEARCH_FTS 

pub const SQL_SEARCH_FTS: &str = "SELECT t.id, t.title, t.file_path, bm25(topics_fts) AS score
               FROM topics_fts
               JOIN topics t ON topics_fts.rowid = t.rowid
               WHERE topics_fts MATCH ?1
               ORDER BY score
               LIMIT ?2";