CSQL
CSQL was an open source main memory high-performance relational database management system developed at sourceforge.net. It is designed to provide high performance for SQL queries and DML statements.
As there is no disk I/O, in-memory databases provide a predictive response time which is suited to real time and near real time applications. Something called Datablitz was described in 1998.
A project called DBCache done by IBM was presented in 2004 by C. Mohan.
It was configured to work as transparent cache for database management systems such as MySQL and PostgreSQL, circa 2009.
Version 3.3 was released in 2011.
It was promoted by a company called Lakshya in Bangalore, which existed through about 2013.
