Hi,
In <CAD21AoDCH1io_dGtsmnmZ4bUWfdPhEUe_8VQNvi31+78Pt7KdQ(at)mail(dot)gmail(dot)com>
"Re: Make COPY format extendable: Extract COPY TO format implementations" on Tue, 4 Feb 2025 17:32:07 -0800,
Masahiko Sawada <sawada(dot)mshk(at)gmail(dot)com> wrote:
> BTW we need to check if the return value type of the handler function
> is copy_handler.
Oh, can we do it without calling a function? It seems that
FmgrInfo doesn't have return value type information. Should
we read pg_catalog.pg_proc or something for it?
Thanks,
--
kou