Re: [PATCHES] Bitmapscan changes

Поиск
Список
Период
Сортировка
От Joshua D. Drake
Тема Re: [PATCHES] Bitmapscan changes
Дата
Msg-id 45F81311.5030107@commandprompt.com
обсуждение исходный текст
Ответ на Re: [PATCHES] Bitmapscan changes  (Hannu Krosing <hannu@skype.net>)
Ответы Re: [PATCHES] Bitmapscan changes  (Alvaro Herrera <alvherre@commandprompt.com>)
Re: [PATCHES] Bitmapscan changes  (Heikki Linnakangas <heikki@enterprisedb.com>)
Список pgsql-hackers
Hannu Krosing wrote:
> Ühel kenal päeval, K, 2007-03-14 kell 10:22, kirjutas Heikki
> Linnakangas:
>> Tom Lane wrote:
>>> At this point I'm feeling unconvinced that we want it at all.  It's
>>> sounding like a large increase in complexity (both implementation-wise
>>> and in terms of API ugliness) for a fairly narrow use-case --- just how
>>> much territory is going to be left for this between HOT and bitmap indexes?
>> I'm in a awkward situation right now. I've done my best to describe the 
>> use cases for clustered indexes. 
> 
> ...
> 
>> Just to recap the general idea: reduce index size taking advantage of 
>> clustering in the heap.

This is what I suggest.

Provide a tarball of -head with the patch applied.

Provide a couple of use cases that can be run with explanation of how to
verify the use cases.

Allow the community to drive the inclusion by making it as easy as
possible to allow a proactive argument to take place by the people
actually using the product.

Proving that a user could and would use the feature is something that is
a very powerful argument.

Sincerely,

Joshua D. Drake





-- 
     === The PostgreSQL Company: Command Prompt, Inc. ===
Sales/Support: +1.503.667.4564 || 24x7/Emergency: +1.800.492.2240
Providing the most comprehensive  PostgreSQL solutions since 1997            http://www.commandprompt.com/

Donate to the PostgreSQL Project: http://www.postgresql.org/about/donate
PostgreSQL Replication: http://www.commandprompt.com/products/



В списке pgsql-hackers по дате отправления:

Предыдущее
От: mark@mark.mielke.cc
Дата:
Сообщение: Re: My honours project - databases using dynamically attached entity-properties
Следующее
От: Tom Lane
Дата:
Сообщение: Re: Daylight Saving Time question PostgreSQL 8.1.4