Re: Redacting information from logs

On Mon, 2019-08-05 at 14:10 -0700, Andres Freund wrote:
> I was thinking that it'd just store a struct ErrParam, which'd
> reference
> the passed value and metadata like the name (for structured log
> output) and redaction category.  The bigger problem I see is handling
> the different types of arguments - but perhaps the answer there would
> be
> to just make the macro typesafe? Or have one for scalar values and
> one
> for pointer types?

Losing the compile-time checks for compatibility between format codes
and arguments would be a shame. Are you saying there's a potential
solution for that?

> Doing something like this does however require not directly using
> plain
> sprintf. I'm personally not bothered by that, but I'd not be
> surprised
> if e.g. Tom saw that differently.

It may be possible to still use sprintf if we translate the ErrParams
into plain values first.

Regards,
    Jeff Davis