Hello,


what is the version of mongo c library?


Cheers,
Daniel


On 06.11.19 12:53, Lars Olsson wrote:
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

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