Druid - a distributed column store.
Copyright 2012-2016 Metamarkets Group Inc.
Copyright 2015-2016 Yahoo! Inc.
Copyright 2015-2016 Imply Data, Inc.

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This product contains a modified version of Andrew Duffy's java-alphanum library
  * LICENSE:
    * https://github.com/amjjd/java-alphanum/blob/5c036e2e492cc7f3b7bcdebd46b8f9e2a87927e5/LICENSE.txt (Apache License, Version 2.0)
  * HOMEPAGE:
    * https://github.com/amjjd/java-alphanum

This product contains conjunctive normal form conversion code and a variance aggregator algorithm adapted from Apache Hive
  * LICENSE:
    * https://github.com/apache/hive/blob/branch-2.0/LICENSE (Apache License, Version 2.0)
  * HOMEPAGE:
    * https://github.com/apache/hive

This product contains variable length long deserialization code adapted from Apache Lucene
  * LICENSE:
    * https://github.com/apache/lucene-solr/blob/master/lucene/LICENSE.txt (Apache License, Version 2.0)
  * HOMEPAGE:
    * https://github.com/apache/lucene-solr

This product contains a modified version of Metamarkets java-util library
  * LICENSE:
    * https://github.com/metamx/java-util/blob/master/LICENSE (Apache License, Version 2.0)
  * HOMEPAGE:
    * https://github.com/metamx/java-util
  * COMMIT TAG:
    * https://github.com/metamx/java-util/commit/826021f