Shulou(Shulou.com)06/03 Report--

With the fixed reporting tool, it is not difficult to realize the requirements of complex format and arbitrary combination of index parameters, but when the amount of original data is large, the query will be very slow, and the user experience will become very poor, when there are multiple concurrent requests. It will even have an impact on normal business! But the aggregator is a good knife in the face of this kind of problem.

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