record = new PkblobsWithBLOBs(6, generateRandomBlob(), generateRandomBlob(),
"Long String 2");
mapper.insert(record);
PkblobsExample example = new PkblobsExample();
List<PkblobsKey> answer = mapper.selectByExample(example);
assertEquals(2, answer.size());
example = new PkblobsExample();
example.createCriteria().andIdLessThan(4);
int rows = mapper.deleteByExample(example);