| From: | Bruce Momjian <bruce(at)momjian(dot)us> |
|---|---|
| To: | Baca Radim <rad(dot)baca(at)gmail(dot)com> |
| Cc: | pgsql-hackers(at)lists(dot)postgresql(dot)org |
| Subject: | Re: Item compression in the Gist index |
| Date: | 2022-05-13 19:29:53 |
| Message-ID: | Yn6xsTppNTKXgYbo@momjian.us |
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| Lists: | pgsql-hackers |
On Mon, May 2, 2022 at 02:48:27PM +0200, Baca Radim wrote:
> Hi,
> we are developing an extension for multidimensional data. We have created a
> Gist index that is heavily inspired by a cube extension. Right now we would
> like to add some item compression since data items in a node share a
> significant portion of a tuple prefix. However, I have no idea how to handle
> information stored on a node level in Gists' compression method. Is there
> any example? Unfortunately, the cube extension does not implement item
> compression.
> To be more specific we would like to store in the node a common prefix for
> all tuples in the node.
Uh, SP-GiST does prefix compression.
--
Bruce Momjian <bruce(at)momjian(dot)us> https://momjian.us
EDB https://enterprisedb.com
Indecision is a decision. Inaction is an action. Mark Batterson
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