I'm adding a SQL backend to the hitchhiker-tree project (it's aiming to be an open source "datomic like" db). Would appreciate your comments if anyone has time for a quick code review: https://github.com/datacrypt-project/hitchhiker-tree/pull/21/files

@cddr This might not be a question for #sql, but since you seem to be heading in that direction… Are you using HitchHiker Trees somewhere? Or it is more of an experimental project?