On Wed, Apr 6, 2022 at 11:49 AM Alvaro Herrera <alvhe...@alvh.no-ip.org> wrote: > On 2022-Apr-06, Robert Haas wrote: > > Now if we're only incurring that overhead when this feature is > > enabled, then in fairness that problem is a lot less of an issue, > > especially if this is also disabled by default. People who want the > > data can get it and pay the cost, and others aren't much impacted. > > However, experience has taught me that a lot of skepticism is > > warranted when it comes to claims about how cheap extensions to the > > statistics system will be. > > Maybe this feature should provide a way to be enabled for tables > individually, so you pay the overhead only where you need it and don't > swamp the system with stats for uninteresting tables.
Maybe. Or maybe once Andres finishes fixing the stats collector the cost goes down so much that it's just not a big issue any more. I'm not sure. For me the first question is really around how useful this data really is. I think we can take it as given that the data would be useful to Gunnar, but I can't think of a situation when it would have been useful to me, so I'm curious what other people think (and why). -- Robert Haas EDB: http://www.enterprisedb.com
