SQL to MongoDB
db.runCommand({ mapreduce: "DenormAggCollection", query: { filter1: { '$in': [ 'A', 'B' ] }, filter2: 'C', filter3: { '$gt': 123 } }, map: function() { emit( { d1: this.Dim1, d2: this.Dim2 }, { msum: this.measure1, recs: 1, mmin: this.measure1, mmax: this.measure2 < 100 ? this.measure2 : 0 } );}, reduce: function(key, vals) { var ret = { msum: 0, recs: 0, mmin: 0, mmax: 0 }; for(var i = 0; i < val
TriJUG: Intro to Mahout Slides and Demo examples
Thoughts on Apache Lucene, Mahout, Solr, Tika and Nutch First off, big thank you to TriJUG and all the attendees for allowing me to present Apache Mahout last night. Also a big thank you to Red Hat for providing a most excellent meeting space. Finally, to Manning Publications for providing vouchers for Taming Text and Mahout In Action for the end of the night raffle. Overall, I think it went we
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Zend Framework 1.5.1
