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From "Sylvain Lebresne (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-10216) Remove target type from internal index metadata
Date Wed, 16 Sep 2015 07:28:46 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-10216?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14747080#comment-14747080
] 

Sylvain Lebresne commented on CASSANDRA-10216:
----------------------------------------------

Provided cassci is happy, +1. Thanks.

> Remove target type from internal index metadata
> -----------------------------------------------
>
>                 Key: CASSANDRA-10216
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-10216
>             Project: Cassandra
>          Issue Type: Improvement
>            Reporter: Sam Tunnicliffe
>            Assignee: Sam Tunnicliffe
>              Labels: client-impacting
>             Fix For: 3.0.0 rc1
>
>
> As part of CASSANDRA-6716 & in anticipation of CASSANDRA-10124, a distinction was
introduced between secondary indexes which target a fixed set of 1 or more columns in the
base data, and those which are agnostic to the structure of the underlying rows. This distinction
is manifested in {{IndexMetadata.targetType}} and {{system_schema.indexes}}, in the {{target_type}}
column. It could be argued that this distinction complicates the codebase without providing
any tangible benefit, given that the target type is not actually used anywhere.
> It's only the impact on {{system_schema.indexes}} that makes puts this on the critical
path for 3.0, any code changes are just implementation details. 



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