Summ a Attribut from Points in a Polygon as Anotation in QGIS

Question

I need a "LIFE" Annotation when end of digitizing a Polygon. I neend not the Summ of Points like this (array_length(overlay_contains('zensus_c40a84ba_3850_4f60_b02a_1df14041d205', $id))). This way or by trigger on the geopackage? Cont Points by QGIS Annotation

Answer 1

The sum-funktion past version 3.2.0 ?

This in the polygonlayer. array_sum(overlay_contains('point_layer', pointlayer_atttrb))

pointlayer_atttrb as a Integer!