A computer-based method for compressing varying-length columns of a non-leaf page high key generated during splitting of an index tree leaf page from a key pair including a last key of a splitting leaf page and a first key of a corresponding new leaf page. The method performs a logical comparison of...http://www.google.com.hk/patents/US7039646?utm_source=gb-gplus-share專利 US7039646 - Method and system for compressing varying-length columns during index high key generation
