Am 16.10.2013 12:53, schrieb Jack Applegame:

How to remove field from Bson object?

Hm this sounds funny, but this hasn't been implemented yet (nobody asked
for it until now, though). I've added a
ticket.

However, when implemented, it will not be a particularly efficient
operation (the whole BSON object needs to be written again into a new
buffer, which is O(n) + an allocation). Better is to make such
modifications on an AA before converting to BSON.