Kristoffer Sjögren wrote:
Hi I'm doing some experiments with LMDB trying to emulate a columnar storage database using roaring bitmaps and other tricks. The initial results are promising, but I ask myself, is a row based storage like LMDB appropriate for implementing a columnar database or are there better, more efficient ways/formats?
What makes you think LMDB is either row- or column-based? It has no concept of either, that's purely an abstraction created by higher level code.
-- -- Howard Chu CTO, Symas Corp. http://www.symas.com Director, Highland Sun http://highlandsun.com/hyc/ Chief Architect, OpenLDAP http://www.openldap.org/project/