Context

Atlas Search and Vector Search Indexes have a rich feature-set. Our work with these Indexes in Django reduces the amount of complexity on fields, however, this limits non-standard field mappings.

• autocomplete
• equals (on Strings)
• stringFacet
• numberFacet

Amongst others. For power-users we should still make it easy for them to define an index within the ODM.

Definition of done

Extend the `SearchIndex` and `VectorSearchIndex` classes to allow for more customization of the index dictionary.

Pitfalls

This can blow up the scope of tests.