Re: Yet another slow nested loop
От | Dave Dutcher |
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Тема | Re: Yet another slow nested loop |
Дата | |
Msg-id | 409535A69D444132B8EA07528E1EFF9B@tridecap.com обсуждение исходный текст |
Ответ на | Yet another slow nested loop (Alexander Staubo <alex@bengler.no>) |
Ответы |
Re: Yet another slow nested loop
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Список | pgsql-performance |
> -----Original Message----- > From: Alexander Staubo > > -> Nested Loop (cost=0.00..5729774.95 rows=10420 width=116) > (actual time=262614.470..262614.470 rows=0 loops=1) > Join Filter: ((photos.taken_at > (event_instances."time" + > '-01:00:00'::interval)) AND (photos.taken_at < (event_instances."time" > + '07:00:00'::interval))) > -> Nested Loop (cost=0.00..2055574.35 rows=11869630 > width=120) (actual time=21.750..121838.012 rows=14013998 loops=1) Do you have any of the other enable_* options set to false? What do you have random_page_cost set to? I ask because I'm surprised to see postgres choose to loop when it knows it will have to loop 11 million times. Dave
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