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https://issues.apache.org/jira/browse/CASSANDRA-6477?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14503178#comment-14503178
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Sylvain Lebresne commented on CASSANDRA-6477:
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As a data point, my own preference would be to call them "denormalized views".
As my preference would go to never do the "only keys", I can agree that calling
them "index" is a bit misleading. But I can also agree that "materialized
views" might confuse SQL users that might expect more from them than what we'll
offer. So granted "denormalized views" doesn't reference an existing term but I
see that as a feature. Plus denormalization is really what we're doing there so
...
> 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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