Re: show xl_prev in xlog.c errcontext - Mailing list pgsql-hackers

From Heikki Linnakangas
Subject Re: show xl_prev in xlog.c errcontext
Date
Msg-id 552F55E1.5060806@iki.fi
Whole thread Raw
In response to show xl_prev in xlog.c errcontext  (Alvaro Herrera <alvherre@2ndquadrant.com>)
Responses Re: show xl_prev in xlog.c errcontext
List pgsql-hackers
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



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