Re: psql \dC incorrectly shows casts "with inout" as "binary coercible" on 9.5.14 and 11beta3

[Tom Lane]

I wrote:
> Not sure if this rises to the level of a back-patchable bug.
> People might be surprised if we change that output in minor releases.
> But we could still squeeze it into v11, I think.

I pushed a fix into HEAD & v11.

                        regards, tom lane