Re: show Heap Fetches in EXPLAIN for index-only scans
| От | Peter Geoghegan |
|---|---|
| Тема | Re: show Heap Fetches in EXPLAIN for index-only scans |
| Дата | |
| Msg-id | CAEYLb_VgER4ED9SNOJDHvtYZwU6EsO-mXV6xrx4fss6XN4MnbA@mail.gmail.com обсуждение исходный текст |
| Ответ на | Re: show Heap Fetches in EXPLAIN for index-only scans (Robert Haas <robertmhaas@gmail.com>) |
| Ответы |
Re: show Heap Fetches in EXPLAIN for index-only scans
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| Список | pgsql-hackers |
On 13 January 2012 15:31, Robert Haas <robertmhaas@gmail.com> wrote: > On Fri, Jan 13, 2012 at 10:29 AM, Magnus Hagander <magnus@hagander.net> wrote: >> Would also be good to have counter sin pg_stat_* for this, since you'd >> usually want to look at this kind of data over time as well. In your >> plans? ;) > > Not really. I don't have a clear enough idea about what that should > look like, and I expect a vigorous debate over the distributed cost of > another counter. But I'm happy to have someone who feels more > strongly about it than I do take up the cause. Maybe the the ioss_HeapFetches field should be a uint32? That's all it's going to be on some platforms anyway. -- Peter Geoghegan http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training and Services
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