Comment by JoelJacobson

It did fix the original "Postgres LISTEN/NOTIFY does not scale" [1] post's problem though, which was mentioned in an update of that article:

    Update: Fixed in Postgres core
    This commit has eliminated the bottleneck in the postgres core.
    Credit to Joel Jacobson and the core postgres contributors for resolving this.

[1] https://www.recall.ai/blog/postgres-listen-notify-does-not-s...