Allow multiple text indexes per collection
MongoDb only allow one text index by collection, in contrast of other index types.
This is a limitation that makes it difficult to develop projects with search functionality, for example, if you want to add a text search for advanced users on all fields and a public search on a subset of fields, there isn't a simple and performant way to solve it.
Many developers end up using other products like elastic search, or creating additional collections and using lookup, or using preg_reg or building smart indexes when the creation of multiple text indexes per collection would allow a quick, easy, and efficient solution for many of these scenarios.
This would be a good feature for mongodb :)