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Tyler Hobbs commented on CASSANDRA-9928:
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One possible solution is to require that all non-PK columns that are in a view
PK be updated simultaneously. [~tjake] mentioned possible problems from read
repair, but it seems like with this restriction in place, any read repairs
would end up repairing all non-PK columns at once.
> Add Support for multiple non-primary key columns in Materialized View primary
> keys
> ----------------------------------------------------------------------------------
>
> Key: CASSANDRA-9928
> URL: https://issues.apache.org/jira/browse/CASSANDRA-9928
> Project: Cassandra
> Issue Type: Improvement
> Reporter: T Jake Luciani
> Labels: materializedviews
> Fix For: 3.x
>
>
> Currently we don't allow > 1 non primary key from the base table in a MV
> primary key. We should remove this restriction assuming we continue
> filtering out nulls. With allowing nulls in the MV columns there are a lot
> of multiplicative implications we need to think through.
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