On Tue, Jun 19, 2018 at 12:05 AM, Tom Lane <t...@sss.pgh.pa.us> wrote: > > Well, what I was thinking about was that this functionality already > exists (I think) in one or more "index advisor" plugins. It's possible > that they've all bit-rotted for lack of support, which would not speak > highly of the demand for the feature. But if we feel this is worth > pulling into core, I think something along the lines of a GUC listing > indexes to ignore for planning purposes might be a better design. > It'd certainly dodge the issues you mentioned about lack of mutability > of pg_index entries.
I know only one extension which does exactly that: https://github.com/postgrespro/plantuner It seems that it's still maintained.
