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The following page has been changed by udanax: http://wiki.apache.org/lucene-hadoop/HRDF ------------------------------------------------------------------------------ a column-based storage and adopts various compression techniques, is very good at dealing with nulls in the table + {{{ + Row + | + | / + | / Timestamp + | / + | / + | / + | / + |/ + +----------------- + Column + }}} + === HRDF Query Processor === HRDF Query Processor (HQP) executes RDF queries on RDF data stored in a Hbase table. It translates RDF queries into API calls to Hbase, or !MapReduce jobs, gathers and returns the results