On Tue, Jun 19, 2018 at 12:22 PM, Euler Taveira <euler@timbira.com.br> wrote:
> If we want to test the effect of disabling an index, we could set GUC
> only on the current session. DDL will make the index invisible
> immediately. Things can go worse after that. I prefer the former. It
> is more conservative but could confuse users if the effect is not
> immediate (few words could explain cached plans x invisible indexes).
If we're going to go that way, then we better not call them invisible
indexes. Invisible indexes are generally understood to be indexes that
are "invisible" to everyone -- not just the current session.
--
Peter Geoghegan