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From "Jack Krupansky (JIRA)" <>
Subject [jira] [Commented] (CASSANDRA-6477) Materialized Views (was: Global Indexes)
Date Tue, 07 Jul 2015 15:33:08 GMT


Jack Krupansky commented on CASSANDRA-6477:

1. Are MV updates still eventually consistent (not guaranteed)?

2. Is there any way for the app to assure that the MV update have been completed to some desired

3. Will a repair to the base table assure that all MV are consistent?

4. Can a single MV be repaired to assure that it is consistent? (Especially since the data
for a MV on a node will be derived from data on other nodes due to differences in the partition

Great to see such an exciting new feature take shape!

> Materialized Views (was: Global Indexes)
> ----------------------------------------
>                 Key: CASSANDRA-6477
>                 URL:
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: API, Core
>            Reporter: Jonathan Ellis
>            Assignee: Carl Yeksigian
>              Labels: cql
>             Fix For: 3.0 beta 1
>         Attachments:
> 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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