Re: 'ERROR: attempted to update invisible tuple' from 'ALTER INDEX ... ATTACH PARTITION' on parent index

On Wed, Jul 12, 2023 at 11:12 AM Michael Paquier <michael@paquier.xyz> wrote:
>
> On Wed, Jul 12, 2023 at 09:38:41AM +0900, Michael Paquier wrote:
> > While working recently on what has led to cfc43ae and fc55c7f, I
> > really got the feeling that there could be some command sequences that
> > lacked some CCIs (or CommandCounterIncrement calls) to make sure that
> > the catalog updates are visible in any follow-up steps in the same
> > transaction.
>
> Wait a minute.  The validation of a partitioned index uses a copy of
> the pg_index tuple from the relcache, which be out of date:
>        newtup = heap_copytuple(partedIdx->rd_indextuple);
>        ((Form_pg_index) GETSTRUCT(newtup))->indisvalid = true;

But why the recache entry is outdated, does that mean that in the
previous command, we missed registering the invalidation for the
recache entry?

--
Regards,
Dilip Kumar
EnterpriseDB: http://www.enterprisedb.com