Re: psql: Add leakproof field to \dAo+ meta-command results

> On 2024-07-01 15:08 +0200, Yugo NAGATA wrote:
> I would like to propose to add a new field to psql's \dAo+ meta-command
> to show whether the underlying function of an operator is leak-proof.
>

I agree that this is useful information to have, but why add it to
\dAo+ instead of \do+? Taking the example from the original thread,
when writing a query containing 'tsvector @@ tsquery', it's much more
obvious to use "\do+ @@" to check if it's leakproof, rather than
"\dAo+ gin".

Perhaps it would be useful to have this in \df+ output as well.

I notice that this patch spells "leakproof" with a hyphen. IMO
leakproof should not have a hyphen -- at least, that's how I naturally
spell it, and I think that's more common, and it matches the SQL
syntax.

We haven't been consistent about that in the docs and code comments so
far though, so I think we should make a decision, and then standardise
on whatever people decide.

Regards,
Dean