Usage of pg_waldump

From: Dang Minh Huong <kakalot49(at)gmail(dot)com>
To: "pgsql-bugs(at)lists(dot)postgresql(dot)org" <pgsql-bugs(at)lists(dot)postgresql(dot)org>, "pgsql-hackers(at)lists(dot)postgresql(dot)org" <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Subject: Usage of pg_waldump
Date: 2018-05-01 07:41:04
Message-ID: 5ae81a10.1c69fb81.c249.5757@mx.google.com
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Hi,

I am confused with the Usage of pg_waldump (or pg_xlogdump).

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?

Thanks,
---
Dang Minh Huong

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