The following bug has been logged on the website:
Bug reference: 13647
Logged by: Benjamin Flesch
Email address: beni@strivewire.com
PostgreSQL version: 9.4.4
Operating system: Ubuntu 14.04
Description:
After upgrading using the ubuntu up_upgradecluser script, the materialized
views are not populated, resulting in errors.
I had to manually perform "REFRESH MATERIALIZED VIEW foo;" in order to fix
this issue.
It would be nice if the upgrade script also refreshed materialized views in
the future.