| From: | Jeff Janes <jeff(dot)janes(at)gmail(dot)com> | 
|---|---|
| To: | Alvaro Herrera <alvherre(at)2ndquadrant(dot)com> | 
| Cc: | pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> | 
| Subject: | Re: BRIN index bug due to WAL refactoring | 
| Date: | 2015-06-26 19:39:46 | 
| Message-ID: | CAMkU=1ww+4nctAfahYBOfQJLEUaSTHQL-UqqCiQ257aatoWf-A@mail.gmail.com | 
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| Lists: | pgsql-hackers | 
On Fri, Jun 26, 2015 at 11:35 AM, Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>
wrote:
> Jeff Janes wrote:
>
> > On replica:
> >
> > set enable_seqscan TO off;
> > explain (analyze) select count(*) from foobar ;
> > ERROR:  corrupted BRIN index: inconsistent range map
>
> Nice.  As I understand it, the problem is that the replay is using the
> block number of the revmap page as target blkno of the revmap entry,
> when it should be using the block number of the data page.  This should
> fix it.
>
Thanks, that worked.
The way the blkno and buffer refer to different block/buffers is pretty
confusing.  Could we rename a variable to make it clearer which buffer's
number is contained in blkno?
Thanks,
Jeff
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