Re: Show various offset arrays for heap WAL records - Mailing list pgsql-hackers

From Peter Geoghegan
Subject Re: Show various offset arrays for heap WAL records
Date
Msg-id CAH2-WzmPmCQzjzTXFn=z-BFaEodzASUhmdA4CmTAb+zDrdbULw@mail.gmail.com
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In response to Re: Show various offset arrays for heap WAL records  (Andres Freund <andres@anarazel.de>)
Responses Re: Show various offset arrays for heap WAL records
List pgsql-hackers
On Tue, Jan 10, 2023 at 11:35 AM Andres Freund <andres@anarazel.de> wrote:
> Nontrivial, I'm afraid. We don't pass any relevant parameters to rm_desc:
>         void            (*rm_desc) (StringInfo buf, XLogReaderState *record);
>
> so we'd need to patch all of them. That might be worth doing at some point,
> but I don't want to tackle it right now.

Okay. Let's just get the basics in soon, then.

I would like to have a similar capability for index access methods,
but mostly just for investigating performance. Whenever we've really
needed something like this for debugging it seems to have been a
heapam thing, just because there's a lot more that can go wrong with
pruning, which is spread across many different places.

-- 
Peter Geoghegan



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