Re: Research/Implementation of Nested Loop Join optimization
От | Joshua D. Drake |
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Тема | Re: Research/Implementation of Nested Loop Join optimization |
Дата | |
Msg-id | 1217028919.16378.142.camel@jd-laptop обсуждение исходный текст |
Ответ на | Re: Research/Implementation of Nested Loop Join optimization ("Jonah H. Harris" <jonah.harris@gmail.com>) |
Ответы |
Re: Research/Implementation of Nested Loop Join
optimization
|
Список | pgsql-hackers |
On Fri, 2008-07-25 at 19:31 -0400, Jonah H. Harris wrote: > On Fri, Jul 25, 2008 at 6:10 PM, Gregory Stark <stark@enterprisedb.com> wrote: > > "Manoel Henrique" <mhenriquesgbd@gmail.com> writes: > > > >> Yes, I'm relying on the assumption that backwards scan has the same cost as > >> forward scan, why shouldn't it? > > > > Because hard drives only spin one direction > > :) What if you are below the equator? > -- > Jonah H. Harris, Senior DBA > myYearbook.com > -- The PostgreSQL Company since 1997: http://www.commandprompt.com/ PostgreSQL Community Conference: http://www.postgresqlconference.org/ United States PostgreSQL Association: http://www.postgresql.us/ Donate to the PostgreSQL Project: http://www.postgresql.org/about/donate
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