[emccue]

Okay, I am very sorry that I got Rick Houlihan's name wrong.

In my defense, I hadn't watched his talks _recently_ and we've all been Berenstain Bear'ed a few times.

But also the comparison of DynamoDB/Cassandra to MongoDB comes directly from his talks. He currently works at MongoDB. I understand MongoDB has more of a flowery API with some more "powerful" operators. It is still a database where you store denormalized information and therefore is inflexible to changes in access patterns.

[endisneigh]

You can store normalized information. What you’re saying is still wrong. With respect to schema you can use Atlas Schema. If you’re not really familiar you shouldn’t make these comparisons IMO.

[arpinum]

> It is still a database where you store denormalized information and therefore is inflexible to changes in access patterns.

It is flexible and you don't need to know your exact access patterns upfront. It may not be as flexible as your chosen technology, but that doesn't make your statement true.