Re: Multivariate MCV list vs. statistics target
| От | David Rowley |
|---|---|
| Тема | Re: Multivariate MCV list vs. statistics target |
| Дата | |
| Msg-id | CAKJS1f9M1mmdfW0G+PS-dgO2xdPer9LsPkaH3e6c2GEnrW-XKw@mail.gmail.com обсуждение исходный текст |
| Ответ на | Re: Multivariate MCV list vs. statistics target (Dean Rasheed <dean.a.rasheed@gmail.com>) |
| Список | pgsql-hackers |
On Fri, 21 Jun 2019 at 19:09, Dean Rasheed <dean.a.rasheed@gmail.com> wrote: > Hmm, maybe. I can certainly understand your dislike of using text[]. > I'm not sure that we can confidently say that multivariate statistics > won't ever need additional tuning knobs, but I have no idea at the > moment what they might be, and nothing else has come up so far in all > the time spent considering MCV lists and histograms, so maybe this is > OK. I agree with having the stxstattarget column. Even if something did come up in the future, then we could consider merging the stxstattarget column with a new text[] column at that time. -- David Rowley http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services
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