Shameless plug: https://github.com/chop-dbhi/scds https://github.com/chop-dbhi/scds (stands for slowly changing dimensions store). A prototype, but versions ind

Shameless plug: https://github.com/chop-dbhi/scds https://github.com/chop-dbhi/scds (stands for slowly changing dimensions store). A prototype, but versions individual records and tells you what changed if anything. Also there is preliminary support for JSON schema.