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Corticon Studio: Rule Modeling Guide : Collections : Aggregations that optimize database access

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Aggregations that optimize database access

A subset of collection operators are known as aggregation operators because they evaluate a collection to compute one value. These aggregation operators are as highlighted:
When these aggregations are applied through the Enterprise Data Connector in a Rulesheet set to Extend to Database, the performance impact against large tables can be minimized by performing non-conditional actions that force the calculations onto the database. For an example of this, see Optimizing Aggregations that Extend to Database