On: A better SQL in 11 lines of code

[wbadart]

The core relation composition operator reminds me of Alloy's dot-join operator [1]. Wondering if anyone can comment on the differences, theoretical or practical?

[1]: https://practicalalloy.github.io/chapters/structural-topics/...

[remywang → wbadart]

They are exactly the same!

[wbadart → remywang]

Cool! That's both unsurprising, given the apparent similarities, but also a little surprising, since Alloy is built on relational algebra, which you're very careful to distinguish from TAR in your paper. (Great read, btw!)

[remywang → wbadart]

Thanks! Alloy is also based on TAR, they just call it the more common name of relation algebra (not relational).