[Pkg-postgresql-public] Bug#844053: Acknowledgement (postgresql-common: pg_upgradecluster fails with NOT VALID constraints)

[Liam Morland]

For the reference of others having this problem:

I was able to upgrade by using pg_upgrade instead of pg_upgradecluster, 
following the instructions here:

https://wiki.postgresql.org/wiki/Using_pg_upgrade_on_Ubuntu/Debian

The upgrade maintained the NOT VALID constraints.

I could also have used pg_dump; it included the NOT VALID constraints in 
the dump file. The contraints are added at the end so that the import 
works.