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https://issues.apache.org/jira/browse/CASSANDRA-4871?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Piotr Kołaczkowski updated CASSANDRA-4871:
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Comment: was deleted
(was: error: patch failed:
src/java/org/apache/cassandra/hadoop/ColumnFamilyRecordReader.java:160
error: src/java/org/apache/cassandra/hadoop/ColumnFamilyRecordReader.java:
patch does not apply
Can you rebase the patch, please?)
> get_paged_slice does not obey SlicePredicate
> --------------------------------------------
>
> Key: CASSANDRA-4871
> URL: https://issues.apache.org/jira/browse/CASSANDRA-4871
> Project: Cassandra
> Issue Type: New Feature
> Components: API, Hadoop
> Affects Versions: 1.1.0
> Reporter: Scott Fines
> Priority: Minor
> Fix For: 2.0
>
> Attachments: CASSANDRA-4816.patch
>
>
> When experimenting with WideRow support, I noticed that it is not possible to
> specify a bounding SlicePredicate. This means that, no matter what you may
> wish, the entire Column Family will be used during a get_paged_slice call.
> This is unfortunate, if (for example) you are attempting to do MapReduce over
> a subset of your column range.
> get_paged_slice should support a SlicePredicate, which will bound the column
> range over which data is returned. It seems like this SlicePredicate should
> be optional, so that existing code is not broken--when the SlicePredicate is
> not specified, have it default to going over the entire column range.
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