Performing spatial joins with STV_Intersect functions
Suppose you want to process a medium-to-large spatial data set and determine which points intersect with which polygons.
Suppose you want to process a medium-to-large spatial data set and determine which points intersect with which polygons. In that case, first create a spatial index using STV_Create_Index
. A spatial index provides efficient access to the set of polygons.
Then, use the STV_Intersect
scalar or transform function to identify which point-polygon pairs match.