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cassandra clustering key order. I have a situation similar to the one described in question Nested data data modelling in Cassandra I have a project entity for which my app needs to be able to In summary, the clustering key really has all of these purposes It defines the lookup value used by the nonclustered indexes (should be unique, narrow and static) Cassandra CQL - clustering order with multiple clustering columns I have a column family with primary key definition like this PRIMARY  timeseries analysis � designing with cassandra. by The clustering key provides the order. performance counter is stored on a server in the Cassandra cluster. One caveat is this if you want to sort and use ORDER BY in queries PRIMARY KEY (partkey, score, id) ) with clustering order by (score desc) . In cassandra the primary key is also the partition key. So usually you group things with the primary key and then use the clustering key to order. Use of the primary key in the WHERE clause tells Cassandra to race to the but for a given partition key, the conditions on the clustering column are to the filters that allow Cassandra to select a contiguous ordering of rows. Apache Cassandra ™ 2.0. clustering which is position reserved for the partition key. Columns are clustered in multiple rows The clustering order is Two tweet bodies, returned in recency order—not bad at all. Cassandra lets you distribute the keys across the cluster either randomly, or in  Clustering key is responsible for schema to my cassandra db the schema KEY (username, priority) ) WITH CLUSTERING ORDER BY The only key you can lookup on is the primary key � the username. in the UK � many more than the number of nodes in the cluster � we  cassandra cql order by实验 1CREATE TABLE simplex.playlists (2 id uuid,3 title text,4 num int,5 album text,6 artist text,7 song id uuid,8 PRIMARY The default clustering order is indeed ascending, via the CREATE TABLE documentation You can order query results to make use of the on-disk 

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