ParentFull threadyangyang·Take a look at MonetDB, an open source column store database [1]. There was a commercialised extension to that called X100 targeting cache efficiency [2]. That became VectorWise [3].[1] http://www.monetdb.org[2] http://www.cidrdb.org/cidr2005/papers/P19.pdf[3] http://en.wikipedia.org/wiki/VectorwiseView on HN