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QGIS API Documentation 3.99.0-Master (f78f5286a64)
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#include <QList>#include <QDomNode>#include <QPair>#include "qgis_core.h"#include "qgsfields.h"#include "qgsreadwritecontext.h"#include "qgsrelationcontext.h"#include "qgsrelation.h"#include "qgis_sip.h"

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Classes | |
| class | QgsPolymorphicRelation |
| A relation where the referenced (parent) layer is calculated based on fields from the referencing (child) layer. More... | |