Re: doc: clarify the limitation for logical replication when REPILICA IDENTITY is FULL

From: Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>
To: Önder Kalacı <onderkalaci(at)gmail(dot)com>
Cc: Peter Smith <smithpb2250(at)gmail(dot)com>, "Hayato Kuroda (Fujitsu)" <kuroda(dot)hayato(at)fujitsu(dot)com>, Sergei Kornilov <sk(at)zsrv(dot)org>, "pgsql-hackers(at)lists(dot)postgresql(dot)org" <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Subject: Re: doc: clarify the limitation for logical replication when REPILICA IDENTITY is FULL
Date: 2023-07-17 10:06:05
Message-ID: CAA4eK1+G+tbRBUbDzFqme3A0g5+6XiLFwfSVj_W1mHhKuG08OQ@mail.gmail.com
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On Mon, Jul 17, 2023 at 11:51 AM Önder Kalacı <onderkalaci(at)gmail(dot)com> wrote:
>
>> >
>> > The last line seems repetitive to me. So, I have removed it. Apart
>> > from that patch looks good to me. Sergie, Peter, and others, any
>> > thoughts?
>>
>> The v5 patch LGTM.
>>
>
> Overall looks good to me as well. Please consider the following as an optional improvement.
>
> My only minor concern here is the use of the term "default operator class". It is accurate to use it. However, as far as I know, not many users can follow that easily. I think the "pkey/repl full" suggestion gives some tip, but I wonder if we add something like the following to the text such that users can understand more:
>
>> do not have a default operator class for B-tree or Hash.
>>
>> + If there is no default operator class, usually the type does not have an equality operator.
>>

This sounds a bit generic to me. If required, we can give an example
so that it is easier to understand. But OTOH, I see that we use
"default operator class" in the docs and error messages, so this
should be probably okay.

--
With Regards,
Amit Kapila.

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