From: | "Jonathan S(dot) Katz" <jkatz(at)postgresql(dot)org> |
---|---|
To: | Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, Justin Pryzby <pryzby(at)telsasoft(dot)com> |
Cc: | Bruce Momjian <bruce(at)momjian(dot)us>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: PG 14 release notes, first draft |
Date: | 2021-05-11 13:13:31 |
Message-ID: | 97f6b32d-8c48-5656-b1ce-a3c4de8d6bf3@postgresql.org |
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Lists: | pgsql-hackers |
First Bruce, thank you for compiling the release notes draft. Comments
inline:
On 5/10/21 11:56 PM, Amit Kapila wrote:
> On Mon, May 10, 2021 at 7:30 PM Justin Pryzby <pryzby(at)telsasoft(dot)com> wrote:
>>
>> Can these be merged:
>> Allow logical replication to stream long transactions to standbys (Dilip Kumar, Tomas Vondra, Amit Kapila, Nikhil Sontakke)
>> Improve the logical replication API to allow streaming large in-progress transactions (Tomas Vondra, Dilip Kumar, Amit Kapila)
>>
>
> I think we should merge the below two:
> Add support for streaming to built-in logical replication (Vondra,
> Dilip Kumar, Amit Kapila, Ajin Cherian, Nikhil Sontakke, Stas Kelvich)
>
> Allow logical replication to stream long transactions to standbys
> (Dilip Kumar, Tomas Vondra, Amit Kapila, Nikhil Sontakke)
>
> and say something like:
> Allow logical replication to stream long in-progress transactions to standbys
> Previously transactions that exceeded logical_decoding_work_mem were
> written to disk until the transaction completed.
I was going to post a question about the above bullet point(s), so this
clarification helps -- thanks!
Two comments on the above:
1. I do believe ther eis a missing "Tomas" in the first release note.
2. Would you want to s/standbys/subscribers/ given an instance can be in
read/write mode but still receive logical changes? Or did this patch
affect only subscribers that are also standbys?
Thanks,
Jonathan
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