On 5/24/23 8:04 PM, Andres Freund wrote:
> Hi,
>
> On 2023-05-24 19:57:39 -0400, Jonathan S. Katz wrote:
>> On 5/24/23 5:28 PM, Andres Freund wrote:
>>>
>>> I think the relation extension improvements ought to be mentioned here as
>>> well? Up to 3x faster concurrent data load with COPY seems practically
>>> relevant.
>>
>> I missed that -- not sure I'm finding it in the release notes with a quick
>> grep -- which commit/thread is this?
>
> It was split over quite a few commits, the one improving COPY most
> significantly is
>
> commit 00d1e02be24987180115e371abaeb84738257ae2
> Author: Andres Freund <andres@anarazel.de>
> Date: 2023-04-06 16:35:21 -0700
>
> hio: Use ExtendBufferedRelBy() to extend tables more efficiently
>
> Relevant thread: https://postgr.es/m/20221029025420.eplyow6k7tgu6he3@awork3.anarazel.de
>
> It's in the release notes as:
> Allow more efficient addition of heap and index pages (Andres Freund)
Ah, OK, that's why I didn't grok it. I read through the first message
in[1] and definitely agree it should be in the announcement. How about:
"PostgreSQL 16 also shows up to a 300% improvement when concurrently
loading data with `COPY`"
Thanks,
Jonathan
[1] https://postgr.es/m/20221029025420.eplyow6k7tgu6he3@awork3.anarazel.de