Hi,
I am using NDB_MONGODB to ask some questions to a database. My database structure is pretty heavy, so I like to return as little data as required to Kamailio.
I have tried the following MongoDB syntax for projection to include only given (my_field) column in the response.
mongodb_find_one("srv_name", "database", "collection", "{ "user_id" : "$var(user_id)" }, { "my_field" : 1}", "mgr1")
I always get full DB entry back. Is this supported? The same string works OK in the vanilla mongo client.
How can I limit the result?
Thanks Lars