Re: show xl_prev in xlog.c errcontext

On 04/15/2015 11:35 PM, Alvaro Herrera wrote:
> I found this patch in my local repo that I wrote some weeks or months
> ago while debugging some XLog corruption problem: it was difficult to
> pinpoint what XLog record in a long sequence of WAL files was causing a
> problem, and the displaying the prev pointer in errcontext made finding
> it much easier -- I could correlate it with pg_xlogdump output, I think.

Seems like a good idea, but why print the prev pointer, and not the 
location of the record itself?

- Heikki