I am doing a spatial join by location.
My input layer is a shp file. It is a grid cell of the African of 0.5 x 0.5 degree latitude. It contains, a gid number which identifies the cell, the longitude and the latitude of the middle of the cell.
My join layer is a CSV file. It has different violent events which their corresponding latitude and longitude.
I am doing a spatial location by attributes using intersect option. However, when I do it, the following appears:
No spatial index exists for join layer, performance will be severely degraded
Do you know what can be happening?