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From "Jonathan Ellis (JIRA)" <>
Subject [jira] [Issue Comment Edited] (CASSANDRA-2982) Refactor secondary index api
Date Thu, 11 Aug 2011 03:39:27 GMT


Jonathan Ellis edited comment on CASSANDRA-2982 at 8/11/11 3:37 AM:

+1 v3

      was (Author: jbellis):
> Refactor secondary index api
> ----------------------------
>                 Key: CASSANDRA-2982
>                 URL:
>             Project: Cassandra
>          Issue Type: Sub-task
>          Components: Core
>            Reporter: T Jake Luciani
>            Assignee: T Jake Luciani
>             Fix For: 1.0
>         Attachments: 2982-v1.txt, 2982-v2.txt, CASSANDRA-2982-v3.patch
> 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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