Using MongoDB TTL Collections to Manage User Registrations
TTL Collections were introduced in MongoDB 2.2. You are now able to create an index which triggers the deletion of a document after the Time-To-Live (TTL) time passes.
17 December 2012
TTL Collections were introduced in MongoDB 2.2. You are now able to create an index which triggers the deletion of a document after the Time-To-Live (TTL) time passes.