public function clearCacheInformation()
    {
        $schema = $this->schema;
        if (array_key_exists($schema, self::$localCache)) {
            unset(self::$localCache[$schema]);
            if (($key = array_search($schema, self::$fullyCachedSchemas)) !== false) {
                unset(self::$fullyCachedSchemas[$key]);
            }
        }
    }