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From Tyler Hobbs <>
Subject Re: Option for ordering columns by timestamp in CF
Date Thu, 11 Oct 2012 20:56:45 GMT
Without thinking too deeply about it, this is basically equivalent to
disabling timestamps for a column family and using timestamps for column
names, though in a very indirect (and potentially confusing) manner.  So,
if you want to open a ticket, I would suggest framing it as "make column
timestamps optional".

On Wed, Oct 10, 2012 at 4:44 AM, Ertio Lew <> wrote:

> I think Cassandra should provide an configurable option on per column
> family basis to do columns sorting by time-stamp rather than column names.
> This would be really helpful to maintain time-sorted columns without using
> up the column name as time-stamps which might otherwise be used to store
> most relevant column names useful for retrievals. Very frequently we need
> to store data sorted in time order. Therefore I think this may be a very
> general requirement & not specific to just my use-case alone.
> Does it makes sense to create an issue for this ?
> On Fri, Mar 25, 2011 at 2:38 AM, aaron morton <>wrote:
>> If you mean order by the column timestamp (as passed by the client) that
>> it not possible.
>> Can you use your own timestamps as the column name and store them as long
>> values ?
>> Aaron
>> On 25 Mar 2011, at 09:30, Narendra Sharma wrote:
>> > Cassandra 0.7.4
>> > Column names in my CF are of type byte[] but I want to order columns by
>> timestamp. What is the best way to achieve this? Does it make sense for
>> Cassandra to support ordering of columns by timestamp as option for a
>> column family irrespective of the column name type?
>> >
>> > Thanks,
>> > Naren

Tyler Hobbs
DataStax <>

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