Opened 14 years ago
Last modified 7 years ago
#502 closed enhancement
[wktraster] Optimize ST_Intersection when the geometry is a point — at Initial Version
| Reported by: | pracine | Owned by: | jorgearevalo |
|---|---|---|---|
| Priority: | low | Milestone: | PostGIS Fund Me |
| Component: | raster | Version: | master |
| Keywords: | Cc: |
Description
It might be much quicker to provide the value associated with a pixel intersecting with a point geometry when using ST_Intersection() by accessing the pixel value with ST_Value instead of vectorizing the whole tile. This, obviously, do not work when the intersecting geometry is a polygon. In this case we have to vectorize the complete raster tile.
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