text: DROP TRIGGER event_trigger_table_name_update_trigger ON hdb_catalog.hdb_table;
  
  DROP FUNCTION hdb_catalog.event_trigger_table_name_update();
  
  ALTER TABLE hdb_catalog.event_triggers
  ADD CONSTRAINT event_triggers_schema_name_table_name_fkey
  FOREIGN KEY (schema_name, table_name)
  REFERENCES hdb_catalog.hdb_table(table_schema, table_name)
  ON UPDATE CASCADE;
  