MongoDB sorting limitation

[ChrisAlderson]

MongoDB v3.2 has a sorting limit for 32MB (as documented here). This does become an issue with sorting on 'updated'. There is a fix for this issue for the other sorting options (name, rating, trending, year), this involves 'aggregation'.
Sadly I have not found a way to apply this fix to the 'updated' sorting option as it sorts on a key-value pair which is inside of an array as you can see here. I did try to overcome this by using the 'unwind' and 'group' opperators, but without success.

[Richter-gh]

I deleted my comment because I thought I was wrong, but now I think an index based on unixtime of the updated date is the way to go.