RS_BandAsArray¶
Introduction: Extract a band from a raster as an array of doubles.
Format: RS_BandAsArray (raster: Raster, bandIndex: Integer).
Since: v1.4.1
BandIndex is 1-based and must be between 1 and RS_NumBands(raster). It returns null if the bandIndex is out of range or the raster is null.
SQL Example
SELECT RS_BandAsArray(raster, 1) FROM raster_table
Output:
+--------------------+
| band|
+--------------------+
|[0.0, 0.0, 0.0, 0...|
+--------------------+