Re: MDAM techniques and Index Skip Scan patch

Hi,

On Sat, Oct 23, 2021 at 07:30:47PM +0000, Floris Van Nee wrote:
>
> From the patch series above, v9-0001/v9-0002 is the UniqueKeys patch series,
> which focuses on the planner. v2-0001 is Dmitry's patch that extends it to
> make it possible to use UniqueKeys for the skip scan. Both of these are
> unfortunately still older patches, but because they are planner machinery
> they are less relevant to the discussion about the executor here. Patch
> v2-0002 contains most of my work and introduces all the executor logic for
> the skip scan and hooks up the planner for DISTINCT queries to use the skip
> scan. Patch v2-0003 is a planner hack that makes the planner pick a skip
> scan on virtually every possibility. This also enables the skip scan on the
> queries above that don't have a DISTINCT but where it could be useful.

The patchset doesn't apply anymore:
http://cfbot.cputube.org/patch_36_1741.log
=== Applying patches on top of PostgreSQL commit ID a18b6d2dc288dfa6e7905ede1d4462edd6a8af47 ===
=== applying patch ./v2-0001-Extend-UniqueKeys.patch
[...]
patching file src/include/optimizer/paths.h
Hunk #2 FAILED at 299.
1 out of 2 hunks FAILED -- saving rejects to file src/include/optimizer/paths.h.rej

Could you send a rebased version? In the meantime I will change the status on
the cf app to Waiting on Author.