Re: enable_indexonly
От | Simon Riggs |
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Тема | Re: enable_indexonly |
Дата | |
Msg-id | CA+U5nM+qvJj+VKpZv2xWRKA=uoKaRVoSySgkungw67rE50NdpA@mail.gmail.com обсуждение исходный текст |
Ответ на | Re: enable_indexonly (Thom Brown <thom@linux.com>) |
Ответы |
Re: enable_indexonly
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Список | pgsql-hackers |
On Fri, Apr 27, 2012 at 4:41 PM, Thom Brown <thom@linux.com> wrote: > On 27 April 2012 16:08, Simon Riggs <simon@2ndquadrant.com> wrote: >> I notice that there isn't a parameter called enable_indexonly (or similar). >> >> ISTM that such a major new feature should be controlled by a planner >> method parameter, just as all the existing planner methods are. >> >> This will help us evaluate index only scans in production, and turn >> them off if they have negative impacts. > > It already exists and is called "enable_indexonlyscan". Hmm. Forgive me, I pressed the wrong button and looked at current docs rather than dev docs. (Easier when they used to look different...) -- Simon Riggs http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services
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