QGIS API Documentation  2.18.21-Las Palmas (9fba24a)
qgsaggregatecalculator.h File Reference
#include "qgsstatisticalsummary.h"
#include "qgsdatetimestatisticalsummary.h"
#include "qgsstringstatisticalsummary.h"
#include <QVariant>
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struct  QgsAggregateCalculator::AggregateParameters
 A bundle of parameters controlling aggregate calculation. More...
class  QgsAggregateCalculator
 Utility class for calculating aggregates for a field (or expression) over the features from a vector layer. More...