Missing_Features.rst

What is this?

This document lists down the features missing in mongomock library. PRs for these features are highly appreciated.

If i miss to include a feature in the below list, Please feel free to add to the below list and raise a PR.

• $rename complex operations - https://docs.mongodb.com/manual/reference/operator/update/rename/

• create_collection options - https://docs.mongodb.com/v3.2/reference/method/db.createCollection/#definition

• bypass_document_validation options

• session options

• $slice modifier during a $push operation

• Operations of the aggregate pipeline:

  • $addFields
  • $bucketAuto
  • $collStats
  • $count
  • $currentOp
  • $facet
  • $geoNear
  • $graphLookup
  • $indexStats
  • $listLocalSessions
  • $listSessions
  • $replaceRoot
  • $sortByCount

• Operators within the aggregate pipeline: * Some arithmetic operators:

  • $add
  • $multiply
  • $trunc

  • Boolean operators ($and, $or, $not)
  • Set operators ($setEquals, $setIntersection, $setDifference, …)
  • String operators ($concat, $strcasecmp, $substr, …)
  • Text search operator ($meta)
  • Projection operators ($map, $let)
  • Array operators ($concatArrays, $filter, $isArray, $slice)

• map_reduce options (scope and finalize)