They'll be duplicated. The only way of having one single value per partition is to declare it as static.
Carlos Alonso | Software Engineer | @calonso <https://twitter.com/calonso> On 8 March 2016 at 11:49, X. F. Li <lixf...@gmail.com> wrote: > Hi, > > If a cluster column has the same value over many rows, is the value > duplicated in memory? > > Suppose we have > > create table t ( > c1 int, > c2 text, > c3 int, > primary key(c1,c2,c3) > ); > > and we have N rows with the same value for (c1,c2) and different values > for c3. When the rows are loaded into memory cache, is the value of c2 > duplicated N times in memory? Or cassandra treat (c1,c2,c3) like a > multi-level map and only have 1 copy for the value? > > Thanks. > > X. F. Li >
