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From "Ed Anuff (JIRA)" <j...@apache.org>
Subject [jira] Created: (CASSANDRA-2231) Add CompositeType comparer to the comparers provided in org.apache.cassandra.db.marshal
Date Wed, 23 Feb 2011 20:12:38 GMT
Add CompositeType comparer to the comparers provided in org.apache.cassandra.db.marshal
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                 Key: CASSANDRA-2231
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-2231
             Project: Cassandra
          Issue Type: Improvement
          Components: Contrib
    Affects Versions: 0.7.3
            Reporter: Ed Anuff
            Priority: Minor


CompositeType is a custom comparer that makes it possible to create comparable composite values
out of the basic types that Cassandra currently supports, such as Long, UUID, etc.  This is
very useful in both the creation of custom inverted indexes using columns in a skinny row,
where each column name is a composite value, and also when using Cassandra's built-in secondary
index support, where it can be used to encode the values in the columns that Cassandra indexes.
 One scenario for the usage of these is documented here: http://www.anuff.com/2010/07/secondary-indexes-in-cassandra.html.
 Source for contribution is attached and has been previously maintained on github here: https://github.com/edanuff/CassandraCompositeType

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