Re: question about deleting from cassandra

2010-03-13 Thread Jonathan Ellis
a. All > based on 0.6 beta2. > > -Weijun > > -Original Message- > From: Jonathan Ellis [mailto:jbel...@gmail.com] > Sent: Saturday, March 13, 2010 5:36 AM > To: cassandra-user@incubator.apache.org > Subject: Re: question about deleting from cassandra > > You

RE: question about deleting from cassandra

2010-03-13 Thread Weijun Li
10 5:36 AM To: cassandra-user@incubator.apache.org Subject: Re: question about deleting from cassandra You should submit your minor change to jira for others who might want to try it. On Sat, Mar 13, 2010 at 3:18 AM, Weijun Li wrote: > Tried Sylvain's feature in 0.6 beta2 (need minor cha

Re: question about deleting from cassandra

2010-03-13 Thread Jonathan Ellis
You should submit your minor change to jira for others who might want to try it. On Sat, Mar 13, 2010 at 3:18 AM, Weijun Li wrote: > Tried Sylvain's feature in 0.6 beta2 (need minor change) and it worked > perfectly. Without this feature, as far as you have high volume new and > expired columns y

Re: question about deleting from cassandra

2010-03-13 Thread Weijun Li
Tried Sylvain's feature in 0.6 beta2 (need minor change) and it worked perfectly. Without this feature, as far as you have high volume new and expired columns your life will be miserable :-) Thanks for great job Sylvain!! -Weijun On Fri, Mar 12, 2010 at 12:27 AM, Sylvain Lebresne wrote: > I gue

Re: question about deleting from cassandra

2010-03-12 Thread Sylvain Lebresne
I guess you can also vote for this ticket : https://issues.apache.org/jira/browse/CASSANDRA-699 :) -- Sylvain On Fri, Mar 12, 2010 at 8:28 AM, Mark Robson wrote: > On 12 March 2010 03:34, Bill Au wrote: >> >> Let take Twitter as an example.  All the tweets are timestamped.  I want >> to keep

Re: question about deleting from cassandra

2010-03-11 Thread Mark Robson
On 12 March 2010 03:34, Bill Au wrote: > Let take Twitter as an example. All the tweets are timestamped. I want to > keep only a month's worth of tweets for each user. The number of tweets > that fit within this one month window varies from user to user. What is the > best way to accomplish t

Re: question about deleting from cassandra

2010-03-11 Thread Peter Chang
I've been thinking more about a similar sort of problem. The major difference between normal relational databases and big hashtables is that in the former you can sort and retrieve on any column. In big hashtables (or at least from Cassandra), you only have 1 field to sort on and the sort type is