by Erwin Smout
[FP: Two weeks ago I posted a debunking of an article blaming some SQL sins. Erwin has some additional comments.]
1. Multisets
From the original article:
It is beyond any doubt that set is the basis of mass data computation. Although SQL has the concept of set, it is limited to describing simple result set, and it does not take the set as a basic data type to enlarge its application scope.
Sidestepping several possible nitpicks here, such as e.g., that SQL allows duplicate rows and thus, in its basic form, has bag, not set algebra, the intention behind the complaint here is mostly accurate.
