ruby - Mongoid querys memory limit -


i have around 1 million records in database. when do:

mymodel.distinct(:my_field)

getting error -

failed error 17217: "exception: distinct big, 16mb cap"

tried via aggregation - getting same error.

group = {"$group" => {"_id" => {"my_field" => "$my_field"}}} mymodel.collection.aggregate(group)  failed error 16389: "exception: aggregation result exceeds maximum document size (16mb)"

is there way in mongoid increase memory limit 16mb 100mb? or other ways of getting distinct results? or how manage large queries mongoid?


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