Comment by xp84

See, that's exactly why I carefully said I'm sure it exists.

I've personally never had to shard anything in my professional career. Although IDK how painstaking the sharding would really be for most uses I can imagine besides like, social media. Facebook has to deal with everyone interacting with everyone. But the vast majority of situations most developers see isn't like that. You can run Salesforce purely sharding at the tenant level, since I only need to see my tenant's data.

Anyway I feel the need to be emphatic, I'm sure Mongo's benefits can be realized somewhere, just not in any small or medium sized company that doesn't need sharding, and does need a schema.