Re: Improving btree performance through specializing by key shape, take 2

On Sat, 27 Jan 2024 at 04:38, vignesh C <vignesh21@gmail.com> wrote:
> CFBot shows that the patch does not apply anymore as in [1]:
> === Applying patches on top of PostgreSQL commit ID
> 55627ba2d334ce98e1f5916354c46472d414bda6 ===
> === applying patch ./v14-0001-btree-Implement-dynamic-prefix-compression.patch
> ...
> Hunk #7 succeeded at 3169 with fuzz 2 (offset 75 lines).
> Hunk #8 succeeded at 3180 (offset 75 lines).
> Hunk #9 FAILED at 3157.
> Hunk #10 FAILED at 3180.
> Hunk #11 FAILED at 3218.
> 3 out of 11 hunks FAILED -- saving rejects to file
> contrib/amcheck/verify_nbtree.c.rej
>
> Please post an updated version for the same.

I've attached a rebased version, on top of HEAD @ 7b745d85. The
changes for prefix compression [0] and the rightsep+hikey optimization
[1] have been split off to separate patches/threads. I've also split
previous patch number 0003 into multiple parts, to clearly delineate
code movement vs modifications.

Kind regards,

Matthias van de Meent
Neon (https://neon.tech)

[0] https://commitfest.postgresql.org/46/4635/
[1] https://commitfest.postgresql.org/46/4638/