Re: recovering from "found xmin ... from before relfrozenxid ..."

On Thu, Aug 6, 2020 at 9:19 PM Robert Haas <robertmhaas@gmail.com> wrote:
>
> On Thu, Aug 6, 2020 at 2:11 AM Ashutosh Sharma <ashu.coek88@gmail.com> wrote:
> > Okay, If you want I can remove the restriction on a toast table, but,
> > then that means a user can directly remove the data chunks from the
> > toast table without changing anything in the main table. This means we
> > won't be able to query the main table as it will fail with an error
> > like "ERROR:  unexpected chunk number ...". So, we will have to find
> > some way to identify the pointer to the chunks that got deleted from
> > the toast table and remove that pointer from the main table. We also
> > need to make sure that before we remove a tuple (pointer) from the
> > main table, we identify all the remaining data chunks pointed by this
> > tuple and remove them completely only then that table would be
> > considered to be in a good state. Now, I am not sure if we can
> > currently do all these things.
>
> That's the user's problem. If they don't have a plan for that, they
> shouldn't use this tool. I don't think we can or should try to handle
> it in this code.
>

Okay, thanks.

--
With Regards,
Ashutosh Sharma
EnterpriseDB:http://www.enterprisedb.com