Robert Stupp created CASSANDRA-11527:
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             Summary: Improve ColumnFilter
                 Key: CASSANDRA-11527
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-11527
             Project: Cassandra
          Issue Type: Improvement
            Reporter: Robert Stupp
            Priority: Minor
             Fix For: 4.x


While working on CASSANDRA-7396, it turned out that it could be beneficial to 
modify {{ColumnFilter}} class:
* Allow multiple single element + slice filters for a single column
* At the moment we fetch all cell paths for a single column and just skip the 
values. For a subselection it feels more convenient to just return the selected 
cells and skip the filtered cell-paths.
* Remove Thrift related code.

This requires a change in the serialized format of {{ColumnFilter}} and thus 
proposed for 4.x.



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