public function isCompatible($colType,$colDef) {
        $raw_type=$this->findQuery($this->dataTypes[strtoupper($colType)]);
        preg_match_all('/(?P<type>\w+)($|\((?P<length>(\d+|(.*)))\))/', $raw_type, $match);
        return (bool) preg_match_all('/'.preg_quote($match['type'][0]).'($|\('.
            preg_quote($match['length'][0]).'\))/i',$colDef);
    }