Hi, In <caeg8a3khs6s1xqgdsvc8vftb4gkhbms8txoovsdpfx+mpex...@mail.gmail.com> "Re: Make COPY format extendable: Extract COPY TO format implementations" on Fri, 26 Jan 2024 16:41:50 +0800, Junwang Zhao <zhjw...@gmail.com> wrote:
> CopyToProcessOption()/CopyFromProcessOption() can only handle > single option, and store the options in the opaque field, but it can not > check the relation of two options, for example, considering json format, > the `header` option can not be handled by these two functions. > > I want to find a way when the user specifies the header option, customer > handler can error out. Ah, you want to use a built-in option (such as "header") value from a custom handler, right? Hmm, it may be better that we call CopyToProcessOption()/CopyFromProcessOption() for all options including built-in options. Thanks, -- kou
