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What is the use of the aggregator cache file?

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What is the use of the aggregator cache file?
posted Mar 3, 2015 by Amit Sharma

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Aggregator transformations are handled in chunks of instructions during each run. It stores transitional values which are found in local buffer memory. Aggregators provides extra cache files for storing the transformation values if extra memory is required.

answer Mar 3, 2015 by Manikandan J
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