Changes between Version 87 and Version 88 of WKTRaster/SpecificationWorking01

Timestamp:

Dec 21, 2009, 1:50:11 PM (14 years ago)

Author:

pracine

Comment:

—

WKTRaster/SpecificationWorking01

@@ -328 +328 @@
   ST_Intersects(ST_ConvexHull(raster, 'WITHNODATA'), geometry)
 
-  '''Implementation details'''
+ '''Implementation details'''
  
  This function should be implemented as a pl/pgSQL function performing the three test described one after and conditionally to the other.
@@ -334 +334 @@
  It might be faster to skip test 2) if this test is not signicantly faster than test 3).
 
-'''ST_Intersection(raster|geometry, raster|geometry, ‘raster’|’geometry’)->raster/geometry'''
+'''ST_Intersection(raster, geometry) -> geometry'''
+
+ Variant 1: ST_Intersection(geometry, raster) -> geometry
+
+ Variant 2 & 3: 
+
+  ST_Intersection(raster, geometry, 'raster') -> raster
+
+  ST_Intersection(geometry, raster, 'raster') -> raster
+
+ Variant 4 & 5: 
+
+  ST_Intersection(raster, raster) -> raster
+
+  ST_Intersection(raster, raster, 'geometry') -> geometry