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From "Rustam Aliyev (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-6477) Global indexes
Date Mon, 09 Mar 2015 13:54:44 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-6477?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14352988#comment-14352988
] 

Rustam Aliyev commented on CASSANDRA-6477:
------------------------------------------

+1 for replacing DENORMALISED with INCLUDE

DynamoDB has similar capability which is referred as Projection (http://docs.aws.amazon.com/amazondynamodb/latest/APIReference/API_Projection.html)
and there are 3 supported projection types: ALL, KEYS_ONLY and *INCLUDE*.

> Global indexes
> --------------
>
>                 Key: CASSANDRA-6477
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-6477
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: API, Core
>            Reporter: Jonathan Ellis
>            Assignee: Carl Yeksigian
>              Labels: cql
>             Fix For: 3.0
>
>
> Local indexes are suitable for low-cardinality data, where spreading the index across
the cluster is a Good Thing.  However, for high-cardinality data, local indexes require querying
most nodes in the cluster even if only a handful of rows is returned.



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