st_dumpaspolygons
How PostGIS Raster runs Raster To Polygons: st_dumpaspolygons.
| Engine | PostGIS Raster |
|---|---|
| Tool name | st_dumpaspolygons |
| Interface | sql |
| Implements | Raster To Polygons |
| Documentation | Not stated |
| Effects | modifies input: no, network: no |
| Notes | Not stated |
| Status | active |
Parameters
| Name | Type | Required | Default | Choices | Note |
|---|---|---|---|---|---|
rast | raster | no | Not stated | Not stated | Not stated |
band | integer | no | 1 | Not stated | Not stated |
exclude_nodata_value | boolean | no | true | Not stated | Not stated |
SQL overloads
-
st_dumpaspolygons(rast raster, band integer DEFAULT 1, exclude_nodata_value boolean DEFAULT true) → SETOF geomval
How it maps to the operation
| Operation parameter | Parameter here | Note |
|---|---|---|
raster | rast | Not stated |
band | band | Not stated |
Differences from the operation
- Returns a set of (geom, val) rows.
Harvested by the postgis harvester from engine version
3.7.0. Names can change when an engine is harvested again.