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They use MVCC: http://rethinkdb.com/docs/architecture/ http://rethinkdb.com/docs/architecture/
by bmurphy1976 12y ago
They use MVCC: http://rethinkdb.com/docs/architecture/ http://rethinkdb.com/docs/architecture/
- eloff 12y agoSo does postgres. That alone isn't enough because you can get situations like torn pages where part of the database page is old data and part is new data and nothing makes sense anymore. A log fixes that by first writing to the log so that if the database page gets messed up you have a secondary source you can use to restore it from.