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https://issues.apache.org/jira/browse/CASSANDRA-2904?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jonathan Ellis updated CASSANDRA-2904:
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Priority: Minor (was: Major)
Affects Version/s: (was: 0.7.6)
> get_range_slices with no columns could be made faster by scanning the index
> file
> --------------------------------------------------------------------------------
>
> Key: CASSANDRA-2904
> URL: https://issues.apache.org/jira/browse/CASSANDRA-2904
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Reporter: Jean-Francois Im
> Priority: Minor
>
> When scanning a column family using get_range_slices() and a predicate that
> contains no columns, the scan operates on the actual data, not the index file.
> Our use case for this is that we have a column family that has relatively
> wide rows(varying from 10kb to over 100kb of data per row) and we need to do
> iterate through all the keys to figure out which rows we are interested in;
> obviously, going through the index file than the data is faster in this
> case(in the order of minutes versus hours).
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