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From "Benjamin Roth (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CASSANDRA-13293) MV read-before-write can be omitted for some operations
Date Fri, 03 Mar 2017 07:07:45 GMT
Benjamin Roth created CASSANDRA-13293:
-----------------------------------------

             Summary: MV read-before-write can be omitted for some operations
                 Key: CASSANDRA-13293
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-13293
             Project: Cassandra
          Issue Type: Improvement
            Reporter: Benjamin Roth


A view that has the same fields in the primary key as its base table (i call it a congruent
key), does not require read-before-writes except:

- Range deletes
- Partition deletes

If the view uses filters on non-pk columns either a rbw is required or a write that does not
match the filter has to be turned into a delete. In doubt I'd stay with the current behaviour
and to a rbw.



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