insertIntoTable = function(rows) {
    var table = schema.table('tableA');
    var tx = db.createTx(
        lf.TransactionType.READ_WRITE, [table], createJournal([table]));
    var store = /** @type {!lf.backstore.ObjectStore} */ (
        tx.getTable(
            table.getName(),
            table.deserializeRow.bind(table),
            lf.backstore.TableType.DATA));
    store.put(rows);
    return tx.commit();
  }
@param {!Array<!lf.Row>} rows
@return {!IThenable}