I have two polygons, after doing a dissolve I can't choose which polygon's attributes the new dissolved polygon will have. I tried to find a pattern by checking if the bigger's polygon attributes are kept but it does not appear to be the case. The selection seems random. What do you think?
The QGIS version is 3.4.11-Madeira
I suppose the reason it keeps the 63 is that it is higher in the attribute table as a row? Therefore it is normal that it keeps the 63?
Here in the one layer the dissolve keeps the number that is in the higher position as a row in the attribute table which implies that prevalence is the indicator of which id it will eventually have. But the second layer that has been sorted keeps the same id as the other layer after the dissolve which means that the position in the attribute table may not be of importance in this case.