Provided you're working on a branch that has CASSANDRA-2231 applied (that's either the cassandra-0.8.1 branch or trunk), this work 'out of the box':
The setup will look like: [default@unknown] create keyspace test; [default@unknown] use test; [default@test] create column family testCF with comparator='CompositeType(AsciiType, IntegerType(reversed=true), IntegerType)' and default_validation_class=AsciiType; Then: [default@test] set testCF[a]['foo:24:24'] = 'v1'; Value inserted. [default@test] set testCF[a]['foo:42:24'] = 'v2'; Value inserted. [default@test] set testCF[a]['foobar:42:24'] = 'v3'; Value inserted. [default@test] set testCF[a]['boobar:42:24'] = 'v4'; Value inserted. [default@test] set testCF[a]['boobar:42:42'] = 'v5'; Value inserted. [default@test] get testCF[a]; => (column=boobar:42:24, value=v4, timestamp=1305621115813000) => (column=boobar:42:42, value=v5, timestamp=1305621125563000) => (column=foo:42:24, value=v2, timestamp=1305621096473000) => (column=foo:24:24, value=v1, timestamp=1305621085548000) => (column=foobar:42:24, value=v3, timestamp=1305621110813000) Returned 5 results. -- Sylvain On Tue, May 17, 2011 at 9:20 AM, David Boxenhorn <da...@taotown.com> wrote: > This is what I'm talking about > > https://issues.apache.org/jira/browse/CASSANDRA-2231 > > The on-disk format is > > <(short)length><constituent><end byte = 0><(short)length><constituent><end > byte = 0>... > > I would like to be able to input these kinds of keys into the CLI, something > like > > set cf[key]['constituent1':'constituent2':'constituent3'] = val > > > On Tue, May 17, 2011 at 2:15 AM, Sameer Farooqui <cassandral...@gmail.com> > wrote: >> >> Cassandra wouldn't know that the column name is composite of two different >> things. So you could just request the column names and values for a specific >> key like this and then just look at the column names that get returned: >> [default@MyKeyspace] get DemoCF[ascii('key_42')]; >> => (column=CA_SanJose, value=50, timestamp=1305236885112000) >> => (column=CA_PaloAlto, value=49, timestamp=1305236885192000) >> => (column=FL_Orlando, value=45, timestamp=1305236885280000) >> => (column=NY_NYC, value=40, timestamp=1305236885361000) >> >> And I'm not sure what you mean by inputting composite column names. You >> just input them like any other column name: >> [default@MyKeyspace] set DemoCF['key_42']['CA_SanJose']='51'; >> Value inserted. >> >> >> >> >> On Mon, May 16, 2011 at 2:34 PM, Aaron Morton <aa...@thelastpickle.com> >> wrote: >>> >>> What do you mean by composite column names? >>> >>> Do the data type functions supported by get and set help? Or the assume >>> statement? >>> >>> Aaron >>> On 17/05/2011, at 3:21 AM, David Boxenhorn <da...@taotown.com> wrote: >>> >>> > Is there a way to view composite column names in the CLI? >>> > >>> > Is there a way to input them (i.e. in the set command)? >>> > >> > >
