SQL's shortcomings aren't just syntax and the convention of SCREAMING KEYWORDS. There's the lack of algebraic types (particularly galling given the bizarre thr

SQL's shortcomings aren't just syntax and the convention of SCREAMING KEYWORDS. There's the lack of algebraic types (particularly galling given the bizarre three-value boolean algebra created by its strange null-handling), the poor composability (why is creating a reusable predicate filter so hard?), the lack of any coherent module system, etc. The fact that something as simple as a tree is such a nuisance in a "relational" database is ludicrous.