RE: [PATCH] Add tab-complete for backslash commands

On Wednesday, September 8, 2021 5:05 AM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>Sure, but he'd still get all the commands, just not all the possible
>spellings of each one. And a person who's not sure what's available
>is unlikely to be helped by an entry for "\c", because it's entirely
>not clear which command that's an abbreviation for.
>
>In any case, my main point is that the primary usage of tab-completion
>is as a typing aid, not documentation. I do not think we should make
>the behavior less useful for typing in order to be exhaustive on the
>documentation side.

You are right. I think I've got your point.
Here is the updated patch in which I added the multiple-character versions for backslash commands
and remove their corresponding single-character version.
Of course, for backslash commands with only single-character version, no change added.

BTW, I've done the existing tap-tests for tab-completion with this patch, all tests passed.

Regards,
Tang