|From:||Tomas Vondra <tomas(dot)vondra(at)2ndquadrant(dot)com>|
|To:||Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>|
|Cc:||Binguo Bao <djydewang(at)gmail(dot)com>, Andrey Borodin <x4mmm(at)yandex-team(dot)ru>, Paul Ramsey <pramsey(at)cleverelephant(dot)ca>, Pgsql Hackers <pgsql-hackers(at)postgresql(dot)org>|
|Subject:||Re: Optimize partial TOAST decompression|
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On Wed, Sep 25, 2019 at 05:38:34PM -0300, Alvaro Herrera wrote:
>Hello, can you please update this patch?
I'm not the patch author, but I've been looking at the patch recently
and I have a rebased version at hand - so attached.
FWIW I believe the patch is solid and in good shape, and it got stuck
after I reported some benchmarks showing somewhat flaky performance. I
know Binguo Bao was trying to reproduce the benchmark, and I assume the
silence means he was not successful :-(
On the larger data set the patch however performed very nicely, so maybe
I just did something stupid while running the smaller one, or maybe it's
just noise (the queries were just a couple of ms in that test). I do
plan to rerun the benchmarks and investigate a bit - if I find the patch
is fine, I'd like to commit it shortly.
Tomas Vondra http://www.2ndQuadrant.com
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
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