Release MongoDB 2.2.0
Yesterday, the long-awaited release of NoSQL MongoDB 2.2.0 database.
Among the most important innovations worth noting:
Aggregation Framework
A tool that optimizes the processing of large data arrays without map-reduce (more information on Habré )
Ttl collections
TTL-collections allow you to delete data from a collection that have expired, set using a special index (conveniently, for example, to store logs, sessions, and similar information). When using such collections an additional background process is created to implement the corresponding check.
docs.mongodb.org/manual/release-notes/2.2
As well as locks at the DB level and much more ( http://docs.mongodb.org/manual/release-notes/2.2/ )
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PS Some lesser-known features of the new version are described here.
Among the most important innovations worth noting:
Aggregation Framework
A tool that optimizes the processing of large data arrays without map-reduce (more information on Habré )
Ttl collections
TTL-collections allow you to delete data from a collection that have expired, set using a special index (conveniently, for example, to store logs, sessions, and similar information). When using such collections an additional background process is created to implement the corresponding check.
docs.mongodb.org/manual/release-notes/2.2
As well as locks at the DB level and much more ( http://docs.mongodb.org/manual/release-notes/2.2/ )
')
PS Some lesser-known features of the new version are described here.
Source: https://habr.com/ru/post/150558/
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