[jira] [Updated] (CASSANDRA-6119) IndexedSliceReader can skip columns when fetching multiple contiguous slices

["Fabien Rousseau (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CASSANDRA-6119?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Fabien Rousseau updated CASSANDRA-6119:
---------------------------------------

    Attachment: 6119.patch

> IndexedSliceReader can skip columns when fetching multiple contiguous slices
> ----------------------------------------------------------------------------
>
>                 Key: CASSANDRA-6119
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-6119
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Fabien Rousseau
>            Assignee: Fabien Rousseau
>         Attachments: 6119.patch
>
>
> This was observed using SliceQueryFilter with multiple slices.
> Let's have a row "a" having the following column list : "colA", "colB", "colC", "colD"
> Then select 2 ranges : ["colA", "colB"], ["colC", "colD"]
> Expected result is the four columns
> But only 3 are returned ("colA", "colB", "colD")
> To reproduce the above scenario in the unit tests, you can modify the test "ColumnFamilyStoreTest.testMultiRangeIndexed" by replacing the original line :
>         String[] letters = new String[] { "a", "b", "c", "d", "e", "f", "g", "h", "i" };
> by this one ("f" letter has been removed) :
>         String[] letters = new String[] { "a", "b", "c", "d", "e", "g", "h", "i" };
> Anyway, a patch is attached which adds more unit tests, and modifies IndexedSliceReader.IndexedBlockFetcher & IndexedSliceReader.SimpleBlockFetcher 



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