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https://issues.apache.org/jira/browse/CASSANDRA-10924?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15105505#comment-15105505
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Andrés de la Peña commented on CASSANDRA-10924:
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Great news! It will be very useful for custom implementations. Thanks a lot for
your help!
> Pass base table's metadata to Index.validateOptions
> ---------------------------------------------------
>
> Key: CASSANDRA-10924
> URL: https://issues.apache.org/jira/browse/CASSANDRA-10924
> Project: Cassandra
> Issue Type: Improvement
> Components: CQL, Local Write-Read Paths
> Reporter: Andrés de la Peña
> Assignee: Andrés de la Peña
> Priority: Minor
> Labels: 2i, index, validation
> Fix For: 3.0.3, 3.3
>
> Attachments: CASSANDRA-10924-v0.diff, CASSANDRA-10924-v1.diff
>
>
> Some custom index implementations require the base table's metadata to
> validate their creation options. For example, the options of these
> implementations can contain information about which base table's columns are
> going to be indexed and how, so the implementation needs to know the
> existence and the type of the columns to be indexed to properly validate.
> The attached patch proposes to add base table's {{CFMetaData}} to Index'
> optional static method to validate the custom index options:
> {{public static Map<String, String> validateOptions(CFMetaData cfm,
> Map<String, String> options);}}
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