... sort. Processor 1 will have three sorted lists, frombuckets A; B,andG. Processors 2 and 3 will have 2 sorted lists each. However,since the buckets in the three processors are not in the original ... group-by attribute and performs the aggregatefunction. Using Query 4.5 as an example, one node may produce, for example,(Math, 300) and (Science, 500) and another node (Business, 100) and (Science,100). ... produce, for instance, (Math, 300) and (Science, 500) and another processor(Business, 100) and (Science, 100). The numerical figures indicate the number ofstudents in these degrees.The second phase...