[
https://issues.apache.org/jira/browse/CASSANDRA-1125?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13053467#comment-13053467
]
Mck SembWever commented on CASSANDRA-1125:
------------------------------------------
I can use a {{KeyRange}} and {{Range.intersectionWith(..)}} for start/end
limits in CFIF.
And i can use a {{IndexClause}} (which also permits a start_key) and then
{{get_indexed_slices(..)}} in CFRR's {{RowIterator.maybeInit()}}
But both approaches can't be combined. So i guess ConfigHelper could have
methods setInputKeyRange(..) and setInputIndexClause(..) which are mutually
exclusive to call.
> Filter out ColumnFamily rows that aren't part of the query
> ----------------------------------------------------------
>
> Key: CASSANDRA-1125
> URL: https://issues.apache.org/jira/browse/CASSANDRA-1125
> Project: Cassandra
> Issue Type: New Feature
> Components: Hadoop
> Reporter: Jeremy Hanna
> Priority: Minor
> Fix For: 1.0
>
>
> Currently, when running a MapReduce job against data in a Cassandra data
> store, it reads through all the data for a particular ColumnFamily. This
> could be optimized to only read through those rows that have to do with the
> query.
> It's a small change but wanted to put it in Jira so that it didn't fall
> through the cracks.
--
This message is automatically generated by JIRA.
For more information on JIRA, see: http://www.atlassian.com/software/jira
