Hi,
On 2018-05-01 16:41:04 +0900, Dang Minh Huong wrote:
> The syntax is known as,
>
> pg_waldump [OPTION]... [STARTSEG [ENDSEG]]
>
> Mean that, it could work with no arguments.
> But the "no arguments specified" ERROR will be returned in that case.
>
> $ pg_waldump
> pg_waldump: no arguments specified
> Try "pg_waldump --help" for more information.
>
> I wonder it should be,
>
> pg_waldump { OPTION... [STARTSEG [ENDSEG]] } | { [OPTION]... STARTSEG
> [ENDSEG] }
>
> Have any comments?
To me that doesn't seem like an improvement, looks a good chunk more
complicated. You'll get the error and the docs also tell you that some
arguments are needed.
Greetings,
Andres Freund
