Database Reference
In-Depth Information
lection column has the same performance characteristics as lookup by a secondary index
on a scalar column. As always, it's best to avoid using secondary index lookup for the core
access patterns in our applications. In this case, our secondary index enables us to answer
the question, "Which status updates has a given user starred?". Since this is not a core fea-
ture of the MyStatus application, it's a good use case for secondary indexes.
