2012-01-31 groongaストレージエンジン http://www.clear-code.com/archives/osc2011-db/index.html http://www.clear-code.com/blog/2010/12/1.html http://blog.wktk.co.jp/archives/116 http://www.ustream.tv/recorded/11157264#utm_campaign=synclickback&source=http://www.clear-code.com/blog/2010/12/1.html&medium=11157264