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From "Tyler Hobbs (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CASSANDRA-12605) Timestamp-order searching of sstables does not handle non-frozen UDTs, frozen collections correctly
Date Fri, 02 Sep 2016 21:41:20 GMT
Tyler Hobbs created CASSANDRA-12605:
---------------------------------------

             Summary: Timestamp-order searching of sstables does not handle non-frozen UDTs,
frozen collections correctly
                 Key: CASSANDRA-12605
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-12605
             Project: Cassandra
          Issue Type: Bug
            Reporter: Tyler Hobbs
            Assignee: Tyler Hobbs


{{SinglePartitionReadCommand.queryNeitherCountersNorCollections()}} is used to determine whether
we can search sstables in timestamp order.  We cannot use this optimization when there are
multicell values (such as unfrozen collections or UDTs).  However, this method only checks
{{column.type.isCollection() || column.type.isCounter()}}.  Instead, it should check {{column.type.isMulticell()
|| column.type.isCounter()}}.

This has two implications:
* We are using timestamp-order searching when querying non-frozen UDTs, which can lead to
incorrect/stale results being returned.
* We are not taking advantage of this optimization when querying frozen collections.



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