Postgres LISTEN/NOTIFY does not scale

I appreciate this post for two reasons:

* It gives an indication of how much you need to grow before this Postgres functionality starts being a blocker.

* Folks encountering this issue—and its confusing log line—in the future will be able to find this post and quickly understand the issue.

Sounds like ChatGPT appreciated the post

Just for the em-dashes? Some humans also use them.

A decent way to classify human vs bot when it comes to dashes, is that all bots use ‘em-dashes(—), while almost none use regular dashes (-) in writing. While plenty of humans will use regular dashes, because they won’t bother to look for ‘em-dashes on the keyboard, or phone.

Of course, you have the people that correctly use em-dashes, too.

On iPhones the input methods turn -- into —. If you see me using em-dashes it's cause I wrote on an iPhone. But I prefer -- to —.