Re: [PATCH] Proposal to Enable/Disable Index using ALTER INDEX

On Sat, Aug 02, 2025 at 03:09:19PM -0400, Shayon Mukherjee wrote:
> Per this plan, this would mean that pg_hint_plan would need to
> support index-level hints, and it’s not a massive / impossible
> task. But it also means that both systems aren't fighting/overriding
> each other or making it difficult for users to understand when
> exactly an index is being used or not. Ultimately, this would also
> mean that `ALTER INDEX INVISIBLE` is a one-way door, and there is
> only one way to control index visibility in core, which makes sense
> to me.

Sami has proposed a patch for pg_hint_plan that goes in the direction
of a DisableIndex hint, which is doable even if it requires some work
inside the extension code like some refactoring:
https://github.com/ossc-db/pg_hint_plan/issues/226

So I cannot say much about this proposal for core, but for
pg_hint_plan I'm looking at adding that for the v18 release of the
module, which is planned for the end of August/beginning of September.
--
Michael