ST_IsEmpty — Returns true if the raster is empty (width = 0 and height = 0). Otherwise, returns false.
boolean ST_IsEmpty(raster rast);
boolean ST_IsEmpty(
)
Returns true if the raster is empty (width = 0 and height = 0). Otherwise, returns false.
Availability: 2.0.0
SELECT ST_IsEmpty(ST_MakeEmptyRaster(100, 100, 0, 0, 0, 0, 0, 0)) st_isempty | -----------+ f | SELECT ST_IsEmpty(ST_MakeEmptyRaster(0, 0, 0, 0, 0, 0, 0, 0)) st_isempty | -----------+ t |
ST_HasNoBand