| From: | Jeff Davis <pgsql(at)j-davis(dot)com> |
|---|---|
| To: | Bruce Momjian <bruce(at)momjian(dot)us> |
| Cc: | RhodiumToad on IRC <andrew(at)tao11(dot)riddles(dot)org(dot)uk>, Robert Haas <robertmhaas(at)gmail(dot)com>, Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>, Alvaro Herrera <alvherre(at)commandprompt(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: pg_upgrade bug found! |
| Date: | 2011-04-07 21:26:05 |
| Message-ID: | 1302211565.19211.9.camel@jdavis-ux.asterdata.local |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers |
On Thu, 2011-04-07 at 17:06 -0400, Bruce Momjian wrote:
> I want to avoid anything that requires a compile because they are hard
> for many sites to install so TransactionIdPrecedes() is out. We will
> need to do this in PL/pgSQL probably.
PL/pgSQL can't see dead rows, so that would not be correct. It's
guaranteed to be the same value you see from the heap or newer; because
if it's not visible in the heap, it's not going to be visible in the
toast table.
Regards,
Jeff Davis
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Bruce Momjian | 2011-04-07 21:32:13 | Re: pg_upgrade bug found! |
| Previous Message | Peter Eisentraut | 2011-04-07 21:23:10 | Re: Typed-tables patch broke pg_upgrade |