Re: [PATCH] Improve amcheck to also check UNIQUE constraint in btree index.

From: Pavel Borisov <pashkin(dot)elfe(at)gmail(dot)com>
To: Karina Litskevich <litskevichkarina(at)gmail(dot)com>
Cc: Alexander Korotkov <aekorotkov(at)gmail(dot)com>, Peter Eisentraut <peter(at)eisentraut(dot)org>, Aleksander Alekseev <aleksander(at)timescale(dot)com>, Postgres hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>, Maxim Orlov <orlovmg(at)gmail(dot)com>, Andres Freund <andres(at)anarazel(dot)de>, Greg Stark <stark(at)mit(dot)edu>, Julien Rouhaud <rjuju123(at)gmail(dot)com>, Mark Dilger <mark(dot)dilger(at)enterprisedb(dot)com>, David Steele <david(at)pgmasters(dot)net>, Peter Geoghegan <pg(at)bowt(dot)ie>, Maxim Orlov <m(dot)orlov(at)postgrespro(dot)ru>, lubennikovaav(at)gmail(dot)com
Subject: Re: [PATCH] Improve amcheck to also check UNIQUE constraint in btree index.
Date: 2024-04-25 13:54:39
Message-ID: CALT9ZEEdoRjX2nQgVgg-nvUUVcc6cNUs0POUkWSz9DyrFH6NRQ@mail.gmail.com
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Hi, Karina!

On Thu, 25 Apr 2024 at 17:44, Karina Litskevich <litskevichkarina(at)gmail(dot)com>
wrote:

> Hi, hackers!
>
> On Thu, Apr 25, 2024 at 4:00 PM Pavel Borisov <pashkin(dot)elfe(at)gmail(dot)com>
> wrote:
>
>> 0005: Rename checkunique parameter to more user friendly as proposed by
>> Peter Eisentraut and Alexander Korotkov
>>
>
> I'm not sure renaming checkunique is a good idea. Other arguments of
> bt_index_check and bt_index_parent_check functions (heapallindexed and
> rootdescend) don't have underscore character in them. Corresponding
> pg_amcheck options (--heapallindexed and --rootdescend) are also written
> in one piece. check_unique and --check-unique stand out. Making arguments
> and options in different styles doesn't seem user friendly to me.
>

I did it under the consensus of Peter Eisentraut and Alexander Korotkov.
The pro for renaming is more user-friendly naming, I also agree.
The cons is that we already have both styles: "non-user friendly"
heapallindexed and rootdescend and "user-friendly" parent-check.

I'm ready to go with consensus in this matter. It's also not yet too late
to make it unique-check (instead of check-unique) to be better in style
with parent-check.

Kind regards,
Pavel

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