Anupam λ≡

@haskman.bsky.social

“It’s all fine, if the compiler says it’s fine”. "Be irrational. Don't let the economists win" "Rage against walled gardens" #Haskell #Purescript #Rust #APL #FunctionalProgramming #Linux #Coffee #Robotics #3DPrinting #India #FOSS #Atheism

Why are Venn diagrams of SQL joins misleading? Let me count the ways: 1. The inner join is the intersection of A and B. But A and B are different types, so the intersection should be empty! 2. The left outer join is the whole circle A, so... what's B even doing there at all?

Venn diagrams of join tables, from https://stackoverflow.com/questions/13997365/sql-joins-as-venn-diagram