Fix the load_and_check_config() function to support the "postgresql" cls value
and replace usage of the "local" scheduler cls with "postgresql" everywhere.
Migrated from D8102 (view on Phabricator)
Staging instance, all changes can be removed at any time
and replace usage of the "local" scheduler cls with "postgresql" everywhere.
Migrated from D8102 (view on Phabricator)