The code just says we cannot support it yet, it may come in the future:
// We only support IN for the last name and for compact
storage so far
// TODO: #3885 allows us to extend to non compact as well,
but that remains to be done
> Should this be modelled in a different way in Cassandra? Could you please
> advice?
Depends on what you are doing with the map column.
This is roughly the same as using the map, but in a different table:
CREATE TABLE device_map (
mdid text,
bucket_id text,
map_key text,
map_value text,
PRIMARY KEY( (mdid, bucket_id), map_key)
)
Cheers
-----------------
Aaron Morton
New Zealand
@aaronmorton
Co-Founder & Principal Consultant
Apache Cassandra Consulting
http://www.thelastpickle.com
On 8/11/2013, at 1:05 am, pavli...@gmail.com wrote:
> Hey guys, just started to learn Cassandra recently, got a simple (hopefully)
> question on querying.
>
> There's a table with composite primary key - mdid and bucket_id. So I assume
> mdid is going to be a partition key and bucket_id is a clustering key.
> There're also two more columns to hold a text and a map. See
> http://pastie.org/private/fcygmm891hgg4ugyjhtjg for a full picture.
>
> So, I am basically going to have a big row with may buckets. In my
> application I am going to retrieve a subset of buckets, not all of them at
> once, so I do this:
>
> select .... where mdid='1' and bucket_id in ('global_props', 'test_bucket')
>
> But that gives the error in the subject.
>
> There's pretty interesting thing is that if I query for text column then the
> query works, while does not work for the map column. Check the two queries at
> the bottom http://pastie.org/private/fcygmm891hgg4ugyjhtjg please.
>
> Should this be modelled in a different way in Cassandra? Could you please
> advice?
>
> Thanks,
> Pavlo
