Indexing on a field which is in array of subdocuments

Question

I\'m trying to figure out the best design for the messaging system I\'m porting from SQL Server to MongoDB - currently (in SQL Server) there are tree tables that store the m

Answer 1

see here https://docs.mongodb.com/manual/indexes/#multikey-index

Index by a field of a document in an array is supported by mongodb.

Example:

{ addr.zip: 1 }