PostRelational databases

At the end of the day, the problem with relational databases is C&D's 12 rules. You CANNOT have an efficient relational database because the inefficiency is mandated by the rules.

Who says "data comes in rows and columns"? C&D. But what happens if it comes in three, or four, dimensions? Sure, you can MODEL that in two dimensions, but the modelling can get very expensive ...

The relational maths is great, but any relational engine is crippled by its adherence to the underlying (flawed) rules.

For example, I know I got into a spat on a previous story, but many cases with relational engines that require ACID, *don't* require ACID on post-relational because they're inherently atomic.

Cheers,
Wol