MapReduceOptions

ParallelCollectionScanOptions.

see: http://mongodb.github.io/node-mongodb-native/2.1/api/Collection.html#mapReduce

Hierarchy

MapReduceOptions

Index

Properties

Optional bypassDocumentValidation

bypassDocumentValidation: undefined | true | false

Allow driver to bypass schema validation in MongoDB 3.2 or higher.

Optional finalize

finalize: Function | string

Finalize function.

Optional jsMode

jsMode: undefined | true | false

It is possible to make the execution stay in JS. Provided in MongoDB > 2.0.X.

Optional keeptemp

keeptemp: undefined | true | false

Keep temporary data.

Optional limit

limit: undefined | number

Number of objects to return from collection.

Optional out

out: Object

Sets the output target for the map reduce job. {inline:1} | {replace:'collectionName'} | {merge:'collectionName'} | {reduce:'collectionName'}.

Optional query

query: Object

Query filter object.

Optional readPreference

readPreference: ReadPreference | string

The preferred read preference (ReadPreference.PRIMARY, ReadPreference.PRIMARY_PREFERRED, ReadPreference.SECONDARY, ReadPreference.SECONDARY_PREFERRED, ReadPreference.NEAREST).

Optional scope

scope: Object

Can pass in variables that can be access from map/reduce/finalize.

Optional sort

sort: Object

Sorts the input objects using this key. Useful for optimization, like sorting by the emit key for fewer reduces.

Optional verbose

verbose: undefined | true | false

Provide statistics on job execution time.