>It doesn’t predate sql and certainly not it’s use in mathematics.
What do you mean by "it's use in mathematics"? To my knowledge <> was invented by Algol language creators to use it for inequality. There was no previous use in mathematics. And to my opinion, that was an unfortunate error.
When looking at new languages, getting the basics right is the first thing I look at. Clumsy string concatenation is a blocker in my business, which is like 75% of the code.
Actually in Elixir when doing string building you want to use "improper" lists which lets you very efficiently build up a string without doing any copying.
What do you mean by "it's use in mathematics"? To my knowledge <> was invented by Algol language creators to use it for inequality. There was no previous use in mathematics. And to my opinion, that was an unfortunate error.