On Tue, Apr 21, 2020 at 12:54 PM Alexander Korotkov
<a(dot)korotkov(at)postgrespro(dot)ru> wrote:
> I found concurrency bug in amcheck running on replica. When
> btree_xlog_unlink_page() replays changes to replica, deleted page is
> left with no items. But if amcheck steps on such deleted page
> palloc_btree_page() expects it would have items.
I forgot to mention that I've reproduced it on master. Quick check
shows bug should exist since 11.
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Alexander Korotkov
Postgres Professional: http://www.postgrespro.com
The Russian Postgres Company