Thanks.

Why secondary indexes are recommended for only attributes with low cardinality and they are not very useful for high cardinality values?

2011/3/7 Jonathan Ellis <jbellis@gmail.com>
It does, but this is an implementation detail subject to change (e.g.,
the bitmap indexes being added do not).

On Mon, Mar 7, 2011 at 10:55 AM, Alvin UW <alvinuw@gmail.com> wrote:
> Thanks.
>
> Does Cassandra store secondary index with an extra CF?
>
> 2011/3/7 Jonathan Ellis <jbellis@gmail.com>
>>
>> Yes, this is guaranteed the same way single-row updates are guaranteed
>> to be atomic (the commitlog).
>>
>> On Mon, Mar 7, 2011 at 10:13 AM, Alvin UW <alvinuw@gmail.com> wrote:
>> > Hello,
>> >
>> > I was wondering whether Secondary Index is consistent with its base
>> > table?
>> > How did you guarantee the consistency?
>> >
>> > Thanks
>> >
>> > Alvin
>> >
>>
>>
>>
>> --
>> Jonathan Ellis
>> Project Chair, Apache Cassandra
>> co-founder of DataStax, the source for professional Cassandra support
>> http://www.datastax.com
>
>



--
Jonathan Ellis
Project Chair, Apache Cassandra
co-founder of DataStax, the source for professional Cassandra support
http://www.datastax.com