reserving Partitioner. For more information on
>>> partitioners, look here:
>>>
>>> http://wiki.apache.org/cassandra/StorageConfiguration#Partitioner
>>>
>>> To do key range slices that use both start and finish parameters and
>>> retrieve keys i
gt;>
>> >>>
>> >>> Logically, it doesn't make sense to ever specify an end key with
>> >>> random partitioner. If you specified a start key of "aaa" and and end
>> >>> key of "aac" you might get back as results "
; To do key range slices that use both start and finish parameters and
>>> retrieve keys in-order, you need to use an ordered partitioner -
>>> either the built-in OPP or your own custom one.
>>>
>>> Ben
>>>
>>> On Tue, Jun 8, 2010 at 10:26 PM, si
;
>> On Tue, Jun 8, 2010 at 10:26 PM, sina wrote:
>> > what's the mean of opp? And How can i make the "start" and "finish"
>> useful
>> > and make sense?
>> >
>> >
>> > 2010-06-09
>> >
>> > 9527
>> &
0-06-09
> > ________________
> > 9527
> >
> > 发件人： Ben Browning
> > 发送时间： 2010-06-02 21:08:57
> > 收件人： user
> > 抄送：
> > 主题： Re: Range search on keys not working?
> > They exist because when using OPP
> > 9527
> > ____________
> > 发件人： Ben Browning
> > 发送时间： 2010-06-02 21:08:57
> > 收件人： user
> > 抄送：
> > 主题： Re: Range search on keys not working?
> > They exist because when using OPP they are useful and make sense.
&g
>
> 发件人： Ben Browning
> 发送时间： 2010-06-02 21:08:57
> 收件人： user
> 抄送：
> 主题： Re: Range search on keys not working?
> They exist because when using OPP they are useful and make sense.
> On Wed, Jun 2, 2010 at 8:59 AM, David Boxenhorn wrote:
>
what's the mean of opp? And How can i make the "start" and "finish" useful and
make sense?
2010-06-09
9527
发件人： Ben Browning
发送时间： 2010-06-02 21:08:57
收件人： user
抄送：
主题： Re: Range search on keys not working?
They exist because when using OPP they are usef
>> >> ever use a key range with random partitioner is when you want to
>> >> iterate over all keys in the CF.
>> >>
>> >> Ben
>> >>
>> >>
>> >> > But maybe I'm off the track here and someone else here knows
ense with order-preserving partitioner. The only time to
> >> ever use a key range with random partitioner is when you want to
> >> iterate over all keys in the CF.
> >>
> >> Ben
> >>
> >>
> >> > But maybe I'm off the track here and someone else here knows more
> about
> >&
hashing it, and
>> >> there is not the same correspondence between 'CATEGORY' and 'CATEGORY/'
>> >> as
>> >> for
>> >> hash('CATEGORY') and hash('CATEGORY/').
>> >>
>> >> At least, this
k here and someone else here knows more about
>> > this
>> > key range stuff.
>> >
>> > Martin
>> >
>> >
>> > From: David Boxenhorn [mailto:da...@lookin2.com]
>> > Sent: Wednesday, June 02, 2010
the CF.
>
> Ben
>
>
> > But maybe I'm off the track here and someone else here knows more about
> this
> > key range stuff.
> >
> > Martin
> >
> > ____________
> > From: David Boxenhorn [mailto:da...@lookin2.com]
> > S
ailto:da...@lookin2.com]
> Sent: Wednesday, June 02, 2010 2:30 PM
> To: user@cassandra.apache.org
> Subject: Re: Range search on keys not working?
>
> In other words, I should check the values as I iterate, and stop iterating
> when I get out of range?
>
> I'll try that!
&
> returned as the
> >> start key for the next call to get_range_slices, and the to drop the
> first
> >> element from
> >> the result.
> >>
> >> HTH,
> >> Martin
> >>
> >>
> >> F
Sent:* Wednesday, June 02, 2010 2:30 PM
>
> *To:* user@cassandra.apache.org
> *Subject:* Re: Range search on keys not working?
>
> In other words, I should check the values as I iterate, and stop
> iterating when I get out of range?
>
> I'll try that!
>
> On Wed, Jun 2, 2
2.com]
Sent: Wednesday, June 02, 2010 2:30 PM
To: user@cassandra.apache.org
Subject: Re: Range search on keys not working?
In other words, I should check the values as I iterate, and stop
iterating when I get out of range?
I'l
olution is to iterate through the keys by always using the last key
>> returned as the
>> start key for the next call to get_range_slices, and the to drop the first
>> element from
>> the result.
>>
>> HTH,
>> Martin
>>
>>
>> From: David Boxenhor
lways using the last key
> returned as the
> start key for the next call to get_range_slices, and the to drop the first
> element from
> the result.
>
> HTH,
> Martin
>
> --
> *From:* David Boxenhorn [mailto:da...@lookin2.com]
> *Sent:*
PM
To: user@cassandra.apache.org
Subject: Re: Range search on keys not working?
The previous thread where we discussed this is called, "key is sorted?"
On Wed, Jun 2, 2010 at 2:56 PM, David Boxenhorn
wrote:
The previous thread where we discussed this is called, "key is sorted?"
On Wed, Jun 2, 2010 at 2:56 PM, David Boxenhorn wrote:
> I'm not using OPP. But I was assured on earlier threads (I asked several
> times to be sure) that it would work as stated below: the results would not
> be ordered, b
I'm not using OPP. But I was assured on earlier threads (I asked several
times to be sure) that it would work as stated below: the results would not
be ordered, but they would be correct.
On Wed, Jun 2, 2010 at 2:51 PM, Torsten Curdt wrote:
> Sounds like you are not using an order preserving par
Sounds like you are not using an order preserving partitioner?
On Wed, Jun 2, 2010 at 13:48, David Boxenhorn wrote:
> Range search on keys is not working for me. I was assured in earlier threads
> that range search would work, but the results would not be ordered.
>
> I'm trying to get all the ro
Range search on keys is not working for me. I was assured in earlier threads
that range search would work, but the results would not be ordered.
I'm trying to get all the rows that start with "CATEGORY."
I'm doing:
String start = "CATEGORY.";
.
.
.
keyspace.getSuperRangeSlice(columnParent, slice
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