IndexedDB Fuzzy Search

Ok, first of all, sorry for my English. I'm working in a web project that show suggests when I type something in the inputbox, but I want to use IndexedDB to improve the query speed in Firefox. With WebSQL I have this sentence: db.transaction(function (tx) { var SQL = 'SELECT "column1", "column2" FROM "table" WHERE "column1" LIKE ? ORDER BY "sortcolumn" DESC LIMIT 6'; tx.executeSql(SQL, [searchTer