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The following page has been changed by InchulSong: http://wiki.apache.org/lucene-hadoop/Hbase/RDF The comment on the change is: Concrete examples will be presented after careful thoughts. ------------------------------------------------------------------------------ a column-based storage and adopts various compression techniques, is very good at dealing with nulls in the table - HDL reads a triple at a time and inserts the triple into a Hbase table as follows: - - {{{#!python numbering=off - value_count = 1 - for s, p, o in triples: - insert into rdf_table ('p:value_count') values ('o') - where row='s' - value_count = value_count + 1 - }}} - === HbaseRDF Query Processor === HbaseRDF 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
