Re: Index-only scans
От | Mischa Sandberg |
---|---|
Тема | Re: Index-only scans |
Дата | |
Msg-id | CB0F73E165CFFA4496D12161D835562CF876AB6D@US-COL-EXCHMBX1.green.sophos обсуждение исходный текст |
Ответ на | Re: Index-only scans (Jaime Casanova <jcasanov@systemguards.com.ec>) |
Список | pgsql-hackers |
Now I'm back where I can go look at the source code :-) Thanks. > -----Original Message----- > From: Jaime Casanova [mailto:jcasanov@systemguards.com.ec] > Sent: Monday, July 13, 2009 8:40 PM > To: Mischa Sandberg > Cc: Heikki Linnakangas; PostgreSQL-development > Subject: Re: [HACKERS] Index-only scans > > On Mon, Jul 13, 2009 at 5:38 PM, Mischa > Sandberg<mischa.sandberg@sophos.com> wrote: > > Does PG have an intermediate execution node to sort/batch > index entries (heap tuple ptrs) by heap page prior to lookup? > Something mssql does ... > > > > it sounds a lot like a bitmap index scan > > > -- > Atentamente, > Jaime Casanova > Soporte y capacitación de PostgreSQL > Asesoría y desarrollo de sistemas > Guayaquil - Ecuador > Cel. +59387171157 >
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