Using Debian Stretch default:

libmongoc-1.0-0/oldstable,now 1.4.2-1+b1 amd64 [installed,automatic]

Kamailio 5.1.9

Best Regards
Lars
________________________________
From: Daniel-Constantin Mierla <mico...@gmail.com>
Sent: Wednesday, November 6, 2019 1:29 PM
To: Kamailio (SER) - Users Mailing List <sr-users@lists.kamailio.org>; Lars 
Olsson <lars.ols...@optimobile.se>
Subject: Re: [SR-Users] MongoDB findone(). Is projection supported?


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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