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From "Tyler Hobbs (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (CASSANDRA-9928) Add Support for multiple non-primary key columns in Materialized View primary keys
Date Tue, 20 Oct 2015 21:02:27 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-9928?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14965509#comment-14965509
] 

Tyler Hobbs edited comment on CASSANDRA-9928 at 10/20/15 9:02 PM:
------------------------------------------------------------------

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.

This would also solve (or avoid) CASSANDRA-10226.


was (Author: thobbs):
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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