In pg_upgrade, disallow migration of 8.3 clusters using contrib/ltree

Bruce Momjian <bruce@momjian.us>

Commit: 3ced32d24e14af1877171c085a635b4ccdf8930c
Author: Bruce Momjian <bruce@momjian.us>
Date: 2011-09-07T18:43:12Z
Releases: 9.2.0
In pg_upgrade, disallow migration of 8.3 clusters using contrib/ltree
because its internal format was changed in 8.4.

Backpatch to 9.0 and 9.1.

Report by depesz, diagnosis by Tom.

Files