Hi, I've made the modifications in my proposal in the part of hash, skip list and time, according to the suggestions by Olly. I'd appreciate any feedback/criticism. ------------------ Shangtong Zhang,Second Year Undergraduate, School of Computer Science, Fudan University, China. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.xapian.org/pipermail/xapian-devel/attachments/20140317/9ad7992f/attachment-0002.html>