Re: [PATCH] add relation and block-level filtering to pg_waldump

On Mon, Mar 21, 2022 at 4:36 PM Thomas Munro <thomas.munro@gmail.com> wrote:
> On Sat, Feb 26, 2022 at 7:58 AM David Christensen
> <david.christensen@crunchydata.com> wrote:
> > Attached is V2 with additional feedback from this email, as well as the specification of the
> > ForkNumber and FPW as specifiable options.
>
> Trivial fixup needed after commit 3f1ce973.

[04:30:50.630] pg_waldump.c:963:26: error: format ‘%u’ expects
argument of type ‘unsigned int *’, but argument 3 has type ‘ForkNumber
*’ [-Werror=format=]
[04:30:50.630] 963 | if (sscanf(optarg, "%u",
&config.filter_by_relation_forknum) != 1 ||
[04:30:50.630] | ~^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[04:30:50.630] | | |
[04:30:50.630] | | ForkNumber *
[04:30:50.630] | unsigned int *

And now that this gets to the CompilerWarnings CI task, it looks like
GCC doesn't like an enum as a scanf %u destination (I didn't see that
warning locally when I compiled the above fixup because clearly Clang
is cool with it...).  Probably needs a temporary unsigned int to
sscanf into first.