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Posted to commits@cassandra.apache.org by "Andres de la Peña (Jira)" <ji...@apache.org> on 2021/07/23 16:48:00 UTC
[jira] [Commented] (CASSANDRA-16092) Add Index Group Interface for
Storage Attached Index
[ https://issues.apache.org/jira/browse/CASSANDRA-16092?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17386370#comment-17386370 ]
Andres de la Peña commented on CASSANDRA-16092:
-----------------------------------------------
I've left some review comments on the PR, which overall looks good to me.
> 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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