I've tried to upgrade pg_pathman from 1.0.1 to 1.1, but there were some errors (not saved them, sorry).

I've removed pg_pathman 1.0.1 with DROP EXTENSION pg_pathman; and then make uninstall USE_PGXS=1 and the removed pg_pathman from shared_preload_libraries and restarted PostgreSQL.

Then I'm trying to install pg_pathman 1.1 with git checkout 1.1; make USE_PGXS=1; make install USE_PGXS=1 and then add pg_pathman back to shared_preload_libraries and restarted PostgreSQL.

And then:

# CREATE EXTENSION pg_pathman;
ОШИБКА: отношение "i_pathman_config_params" уже существует
# DROP EXTENSION pg_pathman;
ОШИБКА: расширение "pg_pathman" не существует
# CREATE EXTENSION pg_pathman;
ОШИБКА: отношение "i_pathman_config_params" уже существует

Tried to remove that index, but with no luck:

# DROP TABLE pathman_config_params;
ОШИБКА: таблица "pathman_config_params" не существует
# DROP INDEX i_pathman_config_params;
ОШИБКА: индекс "i_pathman_config_params" не существует

How to fix that without dropping database?