After installing Ez Oracle extension in eZ Publish 4.6, and running the sync_network and monitor cronjobs, when doing a database consistency check I get the following errors:

The database is not consistent with the distribution database.
To synchronize your database with the distribution setup, run the following SQL commands:
DROP INDEX ezx_ezpnet_installation00014_i;
CREATE INDEX ezx_ezpnet_installation00001_i ON ezx_ezpnet_installation ( customer_id );
DROP INDEX ezx_ezpnet_mon_result_f00015_i;
CREATE INDEX ezx_ezpnet_mon_result_f00002_i ON ezx_ezpnet_mon_result ( finnished );
ALTER TABLE ezstarrating MODIFY (contentobject_attribute_id INTEGER DEFAULT 0);
ALTER TABLE ezstarrating MODIFY (contentobject_id INTEGER DEFAULT 0);
ALTER TABLE ezstarrating MODIFY (rating_average FLOAT DEFAULT 0);
ALTER TABLE ezstarrating MODIFY (rating_count INTEGER DEFAULT 0);
ALTER TABLE ezstarrating_data MODIFY (contentobject_attribute_id INTEGER DEFAULT 0);
ALTER TABLE ezstarrating_data MODIFY (contentobject_id INTEGER DEFAULT 0);
ALTER TABLE ezstarrating_data MODIFY (created_at INTEGER DEFAULT 0);
ALTER TABLE ezstarrating_data MODIFY (rating FLOAT DEFAULT 0);
ALTER TABLE ezstarrating_data MODIFY (session_key VARCHAR2(32) NOT NULL);
ALTER TABLE ezstarrating_data MODIFY (user_id INTEGER DEFAULT 0);
ALTER TABLE ezm_block MODIFY (node_id INTEGER DEFAULT 0);
ALTER TABLE ezm_block MODIFY (zone_id CHAR(32) NOT NULL);
ALTER TABLE ezm_pool MODIFY (node_id INTEGER DEFAULT 0);
ALTER TABLE ezm_pool MODIFY (object_id INTEGER DEFAULT 0);

Steps to reproduce

1. Clean installation of eZ Publish 4.6
2. Register in eZ Network
3. Install ezoracle extension
4. Run sync_network and monitor cronjobs