mwang168 Software, Support, and Training for Apache Cassandra en-US Sat, 25 May 2013 17:05:25 +0000 http://bbpress.org/?v=1.0.3 q http://www.datastax.com/support-forums/search.php http://www.datastax.com/support-forums/topic/how-to-list-all-rows-in-one-column-family-using-astyanax-here#post-9069 Tue, 19 Feb 2013 06:42:14 +0000 juha.poutiainen 9069@http://www.datastax.com/support-forums/ <p>Hi,</p> <p>1. you need ordered partitioner<br /> (<a href="http://www.datastax.com/docs/1.0/cluster_architecture/partitioning" rel="nofollow">http://www.datastax.com/docs/1.0/cluster_architecture/partitioning</a>)</p> <p>2. composite key and secondary index is not necessarily the same thing. Check at least chapter "Clustering, compound keys, and more" (<a href="http://www.datastax.com/dev/blog/schema-in-cassandra-1-1" rel="nofollow">http://www.datastax.com/dev/blog/schema-in-cassandra-1-1</a>) </p> http://www.datastax.com/support-forums/topic/how-to-list-all-rows-in-one-column-family-using-astyanax-here#post-8914 Mon, 04 Feb 2013 22:59:03 +0000 mwang168 8914@http://www.datastax.com/support-forums/ <p>Hi, kind of newbie to Cassandra. Using Astynax here. I have a CF which are using Composite Key (id and updateDate). Try to page through all rows (in millions) to dump its content, how do I do it in Astyanax?</p> <p>Coming from RDBMS world, find a lot of restriction of this Non-SQLDB. Also have some other questions:</p> <p>1. is there a way to range query on row key (id)? How do I do it?<br /> 2. Is composite key better than secondary index? I just want to have range query on updateDate?</p> <p>THanks. </p>