tree f9ee6d6bafe95ec8e47977a8dea38aed0c8d3c37
parent 5aef6757ca6bbb2d23ee6b2a408790b6d1c60fa2
author Young-Seok <kisskys@gmail.com> 1389314437 -0800
committer Young-Seok <kisskys@gmail.com> 1389314437 -0800

reduced log record size by removing old operation/value and generalized undo operation by not using physical delete operation in LSM btree