Bruce Momjian <bruce(at)momjian(dot)us> writes:
> On Wed, May 21, 2014 at 10:56:59AM -0600, Jeff Ross wrote:
>> Yes, using 9.3's pg_dump of 8.4 and applying it to both an 8.4 and a
>> 9.3 cluster, the contact_email table now has toast in both 8.4 and
>> 9.3.
> So the big question is why doesn't the existing 8.4 table have a toast
> table? Did you use pg_upgrade on the old cluster before, e.g. from 8.3?
I have a vague recollection that we changed the calculations about whether
a toast table would be needed, but I can't find it in the commit logs
right now --- and anyway I think this was pre-8.4.
regards, tom lane