Re: simplifying foreign key/RI checks

From: Amit Langote <amitlangote09(at)gmail(dot)com>
To: Zhihong Yu <zyu(at)yugabyte(dot)com>
Cc: Corey Huinker <corey(dot)huinker(at)gmail(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>, vignesh C <vignesh21(at)gmail(dot)com>, Kyotaro Horiguchi <horikyota(dot)ntt(at)gmail(dot)com>, PostgreSQL Developers <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Subject: Re: simplifying foreign key/RI checks
Date: 2022-03-22 04:01:06
Message-ID: CA+HiwqEGATLvKk8DCT3zm9AtZ02N_M0D5kiFe-+mC6LqFBc8qA@mail.gmail.com
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On Mon, Mar 14, 2022 at 6:28 PM Zhihong Yu <zyu(at)yugabyte(dot)com> wrote:
> On Mon, Mar 14, 2022 at 1:33 AM Amit Langote <amitlangote09(at)gmail(dot)com> wrote:
>> On Tue, Jan 18, 2022 at 3:30 PM Amit Langote <amitlangote09(at)gmail(dot)com> wrote:
>> > v13 is attached.
>>
>> I noticed that the recent 641f3dffcdf's changes to
>> get_constraint_index() made it basically unusable for this patch's
>> purposes.
>>
>> Reading in the thread that led to 641f3dffcdf why
>> get_constraint_index() was changed the way it was, I invented in the
>> attached updated patch a get_fkey_constraint_index() that is local to
>> ri_triggers.c for use by the new ri_ReferencedKeyExists(), replacing
>> get_constraint_index() that no longer gives it the index it's looking
>> for.
>>
>
> Hi,
> + partkey_isnull[j] = (key_nulls[k] == 'n' ? true : false);
>
> The above can be shortened as:
>
> partkey_isnull[j] = key_nulls[k] == 'n';
>
> + * May neeed to cast each of the individual values of the foreign key
>
> neeed -> need

Both fixed, thanks.

--
Amit Langote
EDB: http://www.enterprisedb.com

Attachment Content-Type Size
v15-0001-Add-isolation-tests-for-snapshot-behavior-in-ri_.patch application/octet-stream 6.5 KB
v15-0002-Avoid-using-SPI-for-some-RI-checks.patch application/octet-stream 40.7 KB

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