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https://issues.apache.org/jira/browse/CASSANDRA-2982?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13081968#comment-13081968
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Jonathan Ellis commented on CASSANDRA-2982:
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I don't think full index pluggability is a goal here. So I don't see the point
of that.
> Refactor secondary index api
> ----------------------------
>
> Key: CASSANDRA-2982
> URL: https://issues.apache.org/jira/browse/CASSANDRA-2982
> Project: Cassandra
> Issue Type: Sub-task
> Components: Core
> Reporter: T Jake Luciani
> Assignee: T Jake Luciani
> Fix For: 1.0
>
> Attachments: 2982-v1.txt
>
>
> Secondary indexes currently make some bad assumptions about the underlying
> indexes.
> 1. That they are always stored in other column families.
> 2. That there is a unique index per column
> In the case of CASSANDRA-2915 neither of these are true. The new api should
> abstract the search concepts and allow any search api to plug in.
> Once the code is refactored and basically pluggable we can remove the
> IndexType enum and use class names similar to how we handle partitioners and
> comparators.
> Basic api is to add a SecondaryIndexManager that handles different index
> types per CF and a SecondaryIndex base class that handles a particular type
> implementation.
> This requires major changes to ColumnFamilyStore and Table.IndexBuilder
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