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  • Jamie Robillard thinks this is interesting:

Keeping different kinds of documents in the same collection can be a nightmare for developers and admins. Developers need to make sure that each query is only returning documents of a certain type or that the application code performing a query can handle documents of different shapes. If we’re querying for blog posts, it’s a hassle to weed out documents containing author data.

From

Cover of MongoDB: The Definitive Guide, 3rd Edition

Note

applications