    @Test
    public void runManyRowTest() throws IOException
    {

        List<GenericRecord> data = new ArrayList<>();
        for (Integer i = 1230001; i <= 1230100; i++)
        {
            data.add(row(AVSC, i, i.toString(), i, i * 1.0));
        }
        runTest(data, data, true, newSparkVerifier(Collections.singletonList("k1"))
                .withMaxGroupSize(10_000));
    }