Re: Indexing - comparison of tree structures

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От Sascha Kuhl
Тема Re: Indexing - comparison of tree structures
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Msg-id CAPvVvKBYEkYCc6nHMqLPLhvL38HptUyy-izNKyvXVy8S=ubDSQ@mail.gmail.com
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Ответ на Indexing - comparison of tree structures  (Sascha Kuhl <yogidabanli@gmail.com>)
Ответы Re: Indexing - comparison of tree structures  (Andres Freund <andres@anarazel.de>)
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Where I can I find research on trees and indexing related to postgresql?

Sascha Kuhl <yogidabanli@gmail.com> schrieb am Mo., 27. Mai 2019, 11:14:
Can you bring me to the research showing b-tree is equally performant? Is postgres taking this research into account?

Jonah H. Harris <jonah.harris@gmail.com> schrieb am Sa., 25. Mai 2019, 02:15:
T-tree (and variants) are index types commonly associated with in-memory database management systems and rarely, if-ever, used with on-disk databases. There has been a lot of research in regard to more modern cache conscious/oblivious b-trees that perform equally or better than t-tree. What’s the use-case?

On Fri, May 24, 2019 at 5:38 AM Sascha Kuhl <yogidabanli@gmail.com> wrote:
Hi,

I compared two data structures realistically by time, after estimating big O. T-tree outperforms b-tree, which is commonly used, for a medium size table. Lehmann and Carey showed the same, earlier.

Can you improve indexing by this?

Understandably

Sascha Kuhl
--
Jonah H. Harris

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