Mapreduce in Greenplum 4.1 – 2nd part

Through this article, we are going to complete the MapReduce job started in the [previous article](

Mapreduce in Greenplum 4.1

Mapreduce is a very trendy software framework. It has been introduced by Google (TM) in 2004. It is a large topic, and it is not possible to cover all of its aspetcs in a single blog article. This is a simple introduction to the _mapreduce_ usage in Greenplum 4.1.