library/Rediska/Key/Abstract.php
public function moveToDb($dbIndex)
    {
        $result = $this->_getRediskaOn()->moveToDb($this->getName(), $dbIndex);

        if (!is_null($this->getExpire()) && $result) {
            $this->expire($this->getExpire(), $this->isExpireTimestamp());
        }

        return $result;
    }
public function moveToDb($dbIndex)
    {
        $result = $this->_getRediskaOn()->moveToDb($this->getName(), $dbIndex);

        if (!is_null($this->getExpire()) && $result) {
            $this->expire($this->getExpire(), $this->isExpireTimestamp());
        }

        return $result;
    }
Move key to other Db

@see Rediska#moveToDb
@param integer $dbIndex
@return boolean