DmitryDulepov\Realurl\ext_update::checkAndUpdatePathCachePrimaryKey PHP Method

    protected function checkAndUpdatePathCachePrimaryKey()
    {
        if ($this->pathCacheNeedsUpdates()) {
            $this->databaseConnection->sql_query('ALTER TABLE tx_realurl_pathdata CHANGE cache_id uid int(11) NOT NULL');
            $this->databaseConnection->sql_query('ALTER TABLE tx_realurl_pathdata DROP PRIMARY KEY');
            $this->databaseConnection->sql_query('ALTER TABLE tx_realurl_pathdata MODIFY uid int(11) NOT NULL auto_increment PRIMARY KEY');
        }
    }