Informatica - when we use only Aggregator transformation in our mapping for approx 5 milion records it takes 40-42

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when we use only Aggregator transformation in our mapping for approx 5 milion records it takes 40-42min time but when we use it with a sorter transformation, the time reduces to 12 -13 min. We have also noticed that throughput of select statement from source was also very high. It aggregates grouped data quickly is ok but why throughput of select statement was also higher using sorter transformation?

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Last Update: February 14, 2007

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