Re: BUG #17288: PSQL bug with COPY command (Windows)

On Fri, Nov 19, 2021 at 9:47 AM Dmitry Koval <d(dot)koval(at)postgrespro(dot)ru> wrote:

> >I still think that we should not call GetFileInformationByHandle()
> >when it comes to an argument that we know will fail, ...
>
> Our program calls function freopen() (this function is used in file
> src\backend\utils\error\elog.c). So we don't know exactly that
> GetFileInformationByHandle() will fails for stdin/stdout/stderr.
>
> Ior illustration, I attached small example (test.c) for this case:
> 1) GetFileInformationByHandle() for "stdout" works without error;
> 2) file "1.txt" after running test contains:
>
> Sample string
> attributes = 0x2020, file size = 15
>
> We can check for redirection without calling GetFileInformationByHandle(),
please consider the attached patch.

Regards,

Juan José Santamaría Flecha