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https://issues.apache.org/jira/browse/CASSANDRA-16092?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Caleb Rackliffe updated CASSANDRA-16092:
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    Status: Review In Progress  (was: Patch Available)

> Add Index Group Interface for Storage Attached Index
> ----------------------------------------------------
>
>                 Key: CASSANDRA-16092
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-16092
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: Feature/SASI
>            Reporter: Zhao Yang
>            Assignee: Zhao Yang
>            Priority: Normal
>             Fix For: 4.x
>
>
> [Index 
> group|https://github.com/datastax/cassandra/blob/storage_attached_index/src/java/org/apache/cassandra/index/Index.java#L634]
>  interface allows:
> * indexes on the same table to receive centralized lifecycle events called 
> secondary index groups. Sharing of data between multiple column indexes on 
> the same table allows SAI disk usage to realise significant space savings 
> over other index implementations.
> * index-group to analyze user query and provide a query plan that leverages 
> all available indexes within the group.



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