| From: | Peter Geoghegan <pg(at)bowt(dot)ie> |
|---|---|
| To: | Andres Freund <andres(at)anarazel(dot)de> |
| Cc: | Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>, Maxim Boguk <maxim(dot)boguk(at)gmail(dot)com>, Jeremy Finzel <finzelj(at)gmail(dot)com>, Postgres General <pgsql-general(at)postgresql(dot)org> |
| Subject: | Re: found xmin from before relfrozenxid on pg_catalog.pg_authid |
| Date: | 2018-05-25 20:41:25 |
| Message-ID: | CAH2-WzkD5Pq+HYg+kXXUaTre=yN3K3a-6Od5E0AB1oFe4oRRwA@mail.gmail.com |
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| Lists: | pgsql-general pgsql-hackers |
On Fri, May 25, 2018 at 1:38 PM, Andres Freund <andres(at)anarazel(dot)de> wrote:
>> BTW I think the definition of HeapTupleHeaderXminFrozen is seriously
>> confusing, by failing to return true if the xmin is numerically
>> FrozenXid (which it'll be if the database was pg_upgraded). I wonder
>> about this one in HeapTupleSatisfiesMVCC:
>
> I suggest raising this on -hackers. I agree that it's unfortunate.
I wonder if BootstrapTransactionId also needs to be considered here.
--
Peter Geoghegan
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