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Last Updated: February 25, 2016
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CouchDB - Queries dead. MapReduce alive.

CouchDB has it's own map and reduce functions to implement a style known as MapReduce. This form of MapReduce allows for independent and parallel computations when working with indexes. CouchDB's combination of the map/reduce functions, are called views, and replace the idea of a query. A lot can be said about a view, but a simple view gets a range of objects based on an object filter and not a query.
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