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https://issues.apache.org/jira/browse/CASSANDRA-16092?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17609352#comment-17609352
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Michael Semb Wever commented on CASSANDRA-16092:
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What's the resolution of this ticket? It appears to be Fixed (and committed to
5.0), but so such version or commit exists?
> 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: 5.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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