[jira] [Commented] (CASSANDRA-3885) Support multiple ranges in SliceQueryFilter

["Jonathan Ellis (Commented) (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CASSANDRA-3885?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13205247#comment-13205247 ] 

Jonathan Ellis commented on CASSANDRA-3885:
-------------------------------------------

(Most of the work will be pushed down into Memtable.getSliceIterator and SSTableSliceIterator.)
                
> Support multiple ranges in SliceQueryFilter
> -------------------------------------------
>
>                 Key: CASSANDRA-3885
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-3885
>             Project: Cassandra
>          Issue Type: Sub-task
>          Components: Core
>            Reporter: Jonathan Ellis
>             Fix For: 1.2
>
>
> This is logically a subtask of CASSANDRA-2710, but Jira doesn't allow sub-sub-tasks.
> We need to support multiple ranges in a SQF, and we want querying them to be efficient, i.e., one pass through the row to get all of the ranges, rather than one pass per range.
> Supercolumns are irrelevant since the goal is to replace them anyway.  Ignore supercolumn-related code or rip it out, whichever is easier.
> This is ONLY dealing with the storage engine part, not the StorageProxy and Command intra-node messages or the Thrift or CQL client APIs.  Thus, a unit test should be added to ColumnFamilyStoreTest to demonstrate that it works.

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