This function sets the NoData value for a specified band of a raster object.
Syntax
raster ST_SetNoData(raster rast, integer band_sn, double nodata_value);Parameters
| Parameter | Description |
|---|---|
| rast | The raster object. |
| band | The sequence number of the band, which starts from 0. A value of -1 indicates all bands. |
| nodata_value | The NoData value of the band. |
Examples
update rast set rast=ST_SetNoData(rast,0, 999.999);
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(1 row)