Hi,
In <CAEG8a3+-3fAmiwD5NmE7W4j5-=HLs2OEexQNW9-fB=j=mdxgDQ@mail.gmail.com>
"Re: Make COPY format extendable: Extract COPY TO format implementations" on Fri, 29 Nov 2024 10:15:04 +0800,
Junwang Zhao <zhjwpku@gmail.com> wrote:
> This thread and [1] thread are kind of interleaved, I chose this thread
> to share the numbers because I think this feature should be committed
> first and then adapt the *copy to json* as a contrib module.
I agree with you.
> Committers on this thread seem worried about the performance
> drawback, so what I tried to do is that *if 2 is slightly worse than 1,
> but better than 3*, then we can commit 2 first, but I did not get
> the expected number.
Could you break down which patch in the v13 patch set[1]
affected? If we can find which change improves performance,
we can use the approach in this patch set too.
[1]: https://www.postgresql.org/message-id/CACJufxH8J0uD-inukxAmd3TVwt-b-y7d7hLGSBdEdLXFGJLyDA%40mail.gmail.com
Thanks,
--
kou
