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From Jonathan Ellis <jbel...@gmail.com>
Subject Re: Get_slice with reversed=true
Date Fri, 04 Dec 2009 05:10:24 GMT
false is slightly more performant

look at http://wiki.apache.org/cassandra/ArchitectureInternals and
start reading the classes in "Read Path" if you want to see the code

On Thu, Dec 3, 2009 at 11:06 PM, JKnight JKnight <beuknight@gmail.com> wrote:
> Thanks but that is not.
>
> I want to know how Cassandra server handle, not client example.
>
> Which "reversed" value is better for server performance?
>
> Thanks.
>
> On Thu, Dec 3, 2009 at 10:59 PM, Jonathan Ellis <jbellis@gmail.com> wrote:
>>
>> Is this what you're looking for?
>>
>> http://wiki.apache.org/cassandra/ClientExamples
>>
>> On Thu, Dec 3, 2009 at 9:42 PM, JKnight JKnight <beuknight@gmail.com>
>> wrote:
>> > Thanks for your reply.
>> >
>> > Could you show me how Cassandra do in code?
>> >
>> > Thanks.
>> >
>> >
>> > On Thu, Dec 3, 2009 at 10:15 PM, Jonathan Ellis <jbellis@gmail.com>
>> > wrote:
>> >>
>> >> it means instead of being in the order of CompareWith, they will be
>> >> reversed from that.
>> >>
>> >> http://wiki.apache.org/cassandra/API has more.
>> >>
>> >> On Thu, Dec 3, 2009 at 9:11 PM, JKnight JKnight <beuknight@gmail.com>
>> >> wrote:
>> >> > Dear all,
>> >> >
>> >> > I know in get_slice method, we have parameter "reversed" which has
>> >> > default
>> >> > value "false".
>> >> >
>> >> > What does cassandra do when I set "reversed = true"? How does this
>> >> > difference with "reversed = false"?
>> >> >
>> >> > Thank a lot for support.
>> >> > --
>> >> > Best regards,
>> >> > JKnight
>> >> >
>> >
>> >
>> >
>> > --
>> > Best regards,
>> > JKnight
>> >
>
>
>
> --
> Best regards,
> JKnight
>

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