[manigandham]

What part of SQL requires not having to design a data model? What exactly do you mean by that?

And technically all relational databases are relational layers on top of a key/value subsystem. Splitting that apart and scaling the storage is how most of the NewSQL databases scale , from CRDB to Yugabyte to Neon.

[deepGem]

What I mean is that the data model in the NoSQL world is tightly coupled with the query pattern. So you define the query pattern and then tailor the data model to that query pattern. In the relational world, you typically choose the index based on your query pattern. Not tailor the data model to your query pattern. You follow normalization principles.

Of course, every data store needs a data model. No debate there :).

Not sure what you mean by relational databases are relational layers on top of key-value stores. InnoDB has a 16KB page data as it's fundamental data structure.

https://dev.mysql.com/doc/internals/en/innodb-page-structure...