On 20/12/2024 23:45, Tom Lane wrote:
> Don't think that quite flies. We might have to regurgitate the
> state explicitly:
>
> LISTEN *
> UNLISTEN foo.*
> LISTEN foo.bar.*
>
> showing that we're listening to channels foo.bar.*, but not other
> channels beginning "foo", and also to all channels not beginning
> "foo".
Could I perhaps propose a sort of wildmat[1] syntax?
The above sequence could be expressed simply as:
LISTEN *,!foo.*,foo.bar.*
I would like this in psql's backslash commands, too.
[1] https://en.wikipedia.org/wiki/Wildmat
--
Vik Fearing
