private void verifyDeltaCount(
      StorageDescriptor sd, FileSystem fs, int count) throws Exception {
    verifyDirCount(sd, fs, count, AcidUtils.deltaFileFilter);
  }
Insert overwrite and major compact an mm table with only original files.

@param format file format for table
@throws Exception
itests/hive-unit/src/test/java/org/apache/hadoop/hive/ql/txn/compactor/TestCompactor.java