It doesn’t predate sql and certainly not it’s use in mathematics. There are other options for concatenation so this is an unfortunate error.
Shouldn’t copy Erlang, otherwise might as well use it.
Shouldn’t copy Erlang, otherwise might as well use it.
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.
The plot thickens, apparently ++ is used for erlang. So I still find it a poor choice.
Really though who cares? `=` is already misused in most programming languages.