> Is it guaranteed that the rows are grouped by the value of the partition key? > That is, is it guaranteed that I'll get Your primary key (k1, k2) is considered in type parts (partition_key , grouping_columns). In your case the primary_key is key and the grouping column in k2. Columns are ordered by the grouping columns, k2.
See http://thelastpickle.com/2013/01/11/primary-keys-in-cql/ Cheers ----------------- Aaron Morton Freelance Cassandra Consultant New Zealand @aaronmorton http://www.thelastpickle.com On 12/04/2013, at 3:19 AM, Sorin Manolache <sor...@gmail.com> wrote: > Hello, > > Let us consider that we have a table t created as follows: > > create table t(k1 vachar, k2 varchar, value varchar, primary key (k1, k2)); > > Its contents is > > a m x > a n y > z 0 9 > z 1 8 > > and I perform a > > select * from p where k1 in ('a', 'z'); > > Is it guaranteed that the rows are grouped by the value of the partition key? > That is, is it guaranteed that I'll get > > a m x > a n y > z 0 9 > z 1 8 > > or > > a n y > a m x > z 1 8 > z 0 9 > > or even > > z 0 9 > z 1 8 > a n y > a m x > > but NEVER > > a m x > z 0 9 > a n y > z 1 8 > > > Thank you, > Sorin
