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

On Sunday, September 5, 2021 1:42 AM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
>I particularly question why we'd offer both
>single- and multiple-character versions, as the single-character
>version seems entirely useless from a completion standpoint.

I generally agreed with your opinion. But I'm not sure if there's someone
who'd like to see the list of backslash commands and choose one to use.
I mean, someone may type '\[tab][tab]' to check all supported backslash commands.
postgres=# \
Display all 105 possibilities? (y or n)
\!             \dc            \dL            \dx            \h             \r
...

In the above scenario, both single- and multiple-character versions could be helpful, thought?

Regards,
Tang