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Interface MapReduceOptions<TKey, TValue>

Type parameters

Hierarchy

Index

Properties

Optional authdb

authdb: string

Optional bsonRegExp

bsonRegExp: boolean

return BSON regular expressions as BSONRegExp instances.

Optional bypassDocumentValidation

bypassDocumentValidation: boolean

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

Optional bypassPinningCheck

bypassPinningCheck: boolean
internal

Hints to executeOperation that this operation should not unpin on an ended transaction

Optional checkKeys

checkKeys: boolean

the serializer will check if keys are valid.

Optional collation

collation: CollationOptions

Collation

Optional comment

comment: string | Document

A user-provided comment to attach to this command

Optional dbName

dbName: string

Optional explain

Specifies the verbosity mode for the explain output.

Optional fieldsAsRaw

fieldsAsRaw: Document

allow to specify if there what fields we wish to return as unserialized raw buffer.

Optional finalize

finalize: string | FinalizeFunction<TKey, TValue>

Finalize function.

Optional fullResponse

fullResponse: boolean
deprecated

This option does nothing

Optional ignoreUndefined

ignoreUndefined: boolean

serialize will not emit undefined fields (default:true)

Optional jsMode

jsMode: boolean

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

Optional keeptemp

keeptemp: boolean

Keep temporary data.

Optional limit

limit: number

Number of objects to return from collection.

Optional maxTimeMS

maxTimeMS: number

Optional noResponse

noResponse: boolean

Optional out

out: "inline" | { inline: 1 } | { replace: string } | { merge: string } | { reduce: string }

Sets the output target for the map reduce job.

Optional promoteBuffers

promoteBuffers: boolean

when deserializing a Binary will return it as a node.js Buffer instance.

Optional promoteLongs

promoteLongs: boolean

when deserializing a Long will fit it into a Number if it's smaller than 53 bits

Optional promoteValues

promoteValues: boolean

when deserializing will promote BSON values to their Node.js closest equivalent types.

Optional query

query: Document

Query filter object.

Optional raw

raw: boolean

Return BSON filled buffers from operations

Optional readConcern

readConcern: ReadConcernLike

Specify a read concern and level for the collection. (only MongoDB 3.2 or higher supported)

Optional readPreference

readPreference: ReadPreferenceLike

The preferred read preference (ReadPreference.primary, ReadPreference.primary_preferred, ReadPreference.secondary, ReadPreference.secondary_preferred, ReadPreference.nearest).

Optional retryWrites

retryWrites: boolean

Should retry failed writes

Optional scope

scope: Document

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

Optional serializeFunctions

serializeFunctions: boolean

serialize the javascript functions (default:false).

Optional session

session: ClientSession

Specify ClientSession for this command

Optional sort

sort: Sort

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

Optional verbose

verbose: boolean

Provide statistics on job execution time.

Optional willRetryWrites

willRetryWrites: boolean

Optional writeConcern

Write Concern as an object

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