Sure, it's a problem because the programmer used a completely unsuitable algorithm that is slow for this use case regardless of memory layout. It's similar to l

Sure, it's a problem because the programmer used a completely unsuitable algorithm that is slow for this use case regardless of memory layout. It's similar to looping over a predicateless SELECT instead of using COUNT. And then blaming databases because I misunderstood the "promises" provided. Although, the original article doesn't make the claims that your submitted title did. (No hostility, just pointing out that you're adding a wrong interpretation.)