for (String file : files) {
FileSKVIterator reader = FileOperations.getInstance().openReader(file, false, fs, fs.getConf(), aconf);
Range range = new Range(ke.getPrevEndRow(), false, ke.getEndRow(), true);
reader.seek(range, columnSet, columnSet.size() == 0 ? false : true);
while (reader.hasTop() && !range.afterEndKey(reader.getTopKey())) {
count++;
reader.next();
}
reader.close();
}