What is the most efficient way to transform aggregate results to string object maps?


The keys of the aggregated results are unknown. The transformation has to be performed as efficient as possible.

1 Answer 1


Suggested solution:

Convert a list of aggregate results to a Json string and deserialize the string as an object.

    List<Map<String, Object>> getAggregateResultAsMap(List<AggregateResult> aggrs)
        String js = Json.serialize(aggrs); // AggregateResult as Map
        List<Map<String, Object>> result = new List<Map<String, Object>>(); // result Object
        Object resultObject = Json.deserializeUntyped(js); // deserialized without type
        for (Object o : (List<Object>) resultObject)
            result.add((Map<String, Object>) o);
        return result;

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