Re: Re: PANIC: invalid index offnum: 186 when processing BRIN indexes in VACUUM

Tom Lane wrote:
> Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org> writes:
> >> Hmm, I'm pretty sure we stress-tested brin in pretty much the same way.
> >> But I see this misbehavior too. Looking ...
>
> > Turns out that this is related to concurrent growth of the table while
> > the summarization process is scanning -- so new pages have appeared at
> > the end of the table after the end point has been determined. It would
> > be a pain to determine number of blocks for each range, so I'm looking
> > for a simple way to fix it without imposing so much overhead.
>
> Where are we on this --- do you want me to push the brin_doupdate
> fix I proposed, or were you intending to merge that into a
> larger patch?

Please push your fixes, I'll post my proposed patch for the other bug
afterwards; they are unrelated problems after all.

If you prefer me to push your fixes, I can do that -- let me know.

> If I'm to do it, is there a reason not to back-patch to all branches
> with BRIN?

No, all these fixes should go back to 9.5.

--
Álvaro Herrera https://www.2ndQuadrant.com/
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