Yesquel: scalable SQL storage for Web applications
  Based on a brief history of the storage systems for Web applications, we motivate the need for a new storage system. We then describe the architecture of such a system, called Yesquel. Yesquel supports the SQL query language and offers performance similar to NOSQL storage systems. 
Marcos K. Aguilera, Joshua B. Leners, Ramakrishna Kotla, Michael   Walfish
cs.DC