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Add filterString to cacheBase key for overlay_* functions
to avoid using cached target layer and cached spatial index if the filter string dynamically changes
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agiudiceandrea committed Oct 30, 2021
1 parent 80ed176 commit ae84e434c192c76f6672785b698dba6246358025
Showing with 1 addition and 1 deletion.
  1. +1 −1 src/core/expression/qgsexpressionfunction.cpp
@@ -6547,7 +6547,7 @@ static QVariant executeGeomOverlay( const QVariantList &values, const QgsExpress
intDomain.grow( bboxGrow ); //optional parameter to enlarge boundary context for touches and equals methods
}

const QString cacheBase { QStringLiteral( "%1:%2" ).arg( targetLayer->id(), subExpString ) };
const QString cacheBase { QStringLiteral( "%1:%2:%3" ).arg( targetLayer->id(), subExpString, filterString ) };

// Cache (a local spatial index) is always enabled for nearest function (as we need QgsSpatialIndex::nearestNeighbor)
// Otherwise, it can be toggled by the user

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