Thank you!! This helped me a lot!
On Wed, Jun 22, 2011 at 7:34 PM, Sylvain Lebresne <sylv...@datastax.com>wrote: > On Wed, Jun 22, 2011 at 11:19 AM, Jeesoo Shin <bsh...@gmail.com> wrote: > > BytesType vs. UTF8Type. which is better in performance? > > I assume Bytes be faster in compare.. but how much faster is it? > > They don't differ at all as far as comparison is involved. They actually > use the > exact same function to do the compare. The only thing that UTF8Type does > is to validate the inputs from the client to be actual UTF8 strings. > The validation > happens during insertion requests and so UTF8Type will use a few more cpu > cycles there, but so few that it doesn't matter. > > If you know that everything will be UTF8, then I suggest UTF8Type if > only to make > sure you never screw up and send arbitrary bytes there. > > Lastly, note that because the comparison between them is the same, and > since > BytesType is more permissive, switching from UTF8Type to BytesType is not > a problem if you ever wish too. > > -- > Sylvain > > > For large large large data set, will it have significant different? > > I love to use UTF8 and be able to read value from cli. :-) > > *IF* it doesn't degrade performance too much. > > ps. planning to use 0.8.x > > > > TIA. > > >
