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Date: Mon, 13 Jul 2015 18:14:09 +0000 (UTC)
From: "T Jake Luciani (JIRA)" <jira@apache.org>
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Subject: [jira] [Commented] (CASSANDRA-6477) Materialized Views (was: Global
 Indexes)
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    [ https://issues.apache.org/jira/browse/CASSANDRA-6477?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14625077#comment-14625077 ] 

T Jake Luciani commented on CASSANDRA-6477:
-------------------------------------------

What I'm saying is we can't insert nulls into clustering or partition keys. we don't support it.  So we can't put multiple non-pk columns into a materialized view PK we (of course they can be in the non-PK columns of the view)

> Materialized Views (was: Global Indexes)
> ----------------------------------------
>
>                 Key: CASSANDRA-6477
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-6477
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: API, Core
>            Reporter: Jonathan Ellis
>            Assignee: Carl Yeksigian
>              Labels: cql
>             Fix For: 3.0 beta 1
>
>         Attachments: test-view-data.sh, users.yaml
>
>
> Local indexes are suitable for low-cardinality data, where spreading the index across the cluster is a Good Thing.  However, for high-cardinality data, local indexes require querying most nodes in the cluster even if only a handful of rows is returned.


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