DocumentDB: Query Size Limits?

I would like to inform you that by default, AWS DocumentDB limits the Document size to be 16 MB. [1]

As DocumentDB utilizes MongoDB internally, whatever limits are present for MongoDB would be applicable for DocumentDB unless otherwise stated in the DocumentDB documentation.[1]

Please refer to doc [2] for limits present in MongoDb.

I sincerely hope this helps!

References:

[1] https://docs.aws.amazon.com/documentdb/latest/developerguide/limits.html#limits-cluster

[2] https://www.mongodb.com/docs/manual/reference/limits/