protected function initIndexesInfo()
    {
        $this->_indexNames = [];
        $this->_indexTypes = [];
        $indexes = $this->findIndexes();
        foreach ($indexes as $index) {
            $indexName = $index['Index'];
            $this->_indexNames[] = $indexName;
            $this->_indexTypes[$indexName] = $index['Type'];
        }
    }