Mailing-List: contact user-help@cassandra.apache.org; run by ezmlm
Precedence: bulk
Reply-To: user@cassandra.apache.org
Received-SPF: softfail (athena.apache.org: transitioning domain of
 sylvain@yakaz.com does not designate 209.85.220.216 as permitted sender)
MIME-Version: 1.0
In-Reply-To: <a43524d01003190830l79e773d4qc3dd076f91dae1f6@mail.gmail.com>
References: <24276CBD-086F-445A-9DD5-E8B131CE7FE3@socketlabs.com>
	<cdc5ad201003181617t34c58f58ob931d78d5a86f334@mail.gmail.com>
	<749BC322-7E4C-4D29-B9B6-87C6D2769BC6@socketlabs.com>
 <ac68ab851003190253n3ce3141i66b38787c2fb62@mail.gmail.com>
	<a43524d01003190830l79e773d4qc3dd076f91dae1f6@mail.gmail.com>
From: Sylvain Lebresne <sylvain@yakaz.com>
Date: Fri, 19 Mar 2010 17:00:27 +0100
Message-ID: <ac68ab851003190900lff1e50bg1c5469b18dac95df@mail.gmail.com>
Subject: Re: Issue with TimeUUID
To: user@cassandra.apache.org
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable

As said, I agree with that.
I've thus created a jira issue
(https://issues.apache.org/jira/browse/CASSANDRA-907).
The discussion could continue there.

On Fri, Mar 19, 2010 at 4:30 PM, Jesse McConnell
<jesse.mcconnell@gmail.com> wrote:
> imo it is a terrible bug..
>
> the usage of a TimeUUIDType implies that your actually caring about
> the unique bits outside of a timestamp...
>
> currently it's nothing more then LongType ColumnFamily backed by
> System.currentTimeInMillis() as a source for name columns.
>
> jesse
>
> --
> jesse mcconnell
> jesse.mcconnell@gmail.com
>
>
>
> On Fri, Mar 19, 2010 at 04:53, Sylvain Lebresne <sylvain@yakaz.com> wrote=
:
>> Just looked at the code and it indeed just compare the
>> timestamps. I also find it weird and I would be for changing it,
>> but maybe there was a good reason to do it the way it is (even
>> if I don't see one right now). I'll let people give their opinion on
>> that.
>>
>> In the meantime, if you need a quick fix for testing, I join you
>> a two line patch that should fix it.
>>
>> --
>> Sylvain
>>
>> On Fri, Mar 19, 2010 at 1:25 AM, John Alessi <john@socketlabs.com> wrote=
:
>>> But they are different names. =A0In my example they are:
>>> 1077e700-c7f2-11de-86d5-f5bcc793a028
>>> 1077e700-c7f2-11de-982e-6fad363d5f29
>>> But Cassandra sees them as the same.
>>> --
>>> John
>>>
>>>
>>>
>>> On Mar 18, 2010, at 7:17 PM, Brandon Williams wrote:
>>>
>>> On Thu, Mar 18, 2010 at 6:12 PM, John Alessi <john@socketlabs.com> wrot=
e:
>>>>
>>>> I am having an issue where Cassandra doesn't seem to be able to
>>>> distinguish between 2 different UUIDs if based on the same exact time,=
 and
>>>> sorting by TimeUUID.
>>>
>>> *snip*
>>>>
>>>> Cassandra doesn't seem to be able to distinguish between 2 different U=
UIDs
>>>> if based on the same exact time, and sorting by TimeUUID.
>>>>
>>>> What am I missing???
>>>
>>> Column names must be distinct. =A0If you insert two columns with the sa=
me
>>> name, one overwrites the other.
>>> -Brandon
>>>
>>>
>>
>