Re: ltree_gist indexes broken after pg_upgrade from 12 to 13

Tomas Vondra <tomas.vondra@enterprisedb.com> writes:
> On 3/4/22 20:29, Nikita Glukhov wrote:
>> So, we probably have corrupted indexes that were updated since such 
>> "incomplete" upgrade of ltree.

> IIRC pg_upgrade is not expected to upgrade extensions - it keeps the
> installed version of the extension, and that's intentional.

Yeah, exactly.  But this opens up an additional consideration we
have to account for: whatever we do needs to work with either 1.1
or 1.2 SQL-level versions of the extension.

            regards, tom lane