ST_CellType
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Returns the data type and bit depth of values stored in each pixel of a raster object.
Syntax
text ST_CellType(raster raster_obj)Parameters
| Parameter | Description |
|---|---|
raster_obj | The raster object to inspect. |
Pixel types
ST_CellType returns one of the following pixel type codes:
| Pixel type | Description |
|---|---|
8BSI | 8-bit signed integer |
8BUI | 8-bit unsigned integer |
16BSI | 16-bit signed integer |
16BUI | 16-bit unsigned integer |
32BSI | 32-bit signed integer |
32BUI | 32-bit unsigned integer |
32BF | 32-bit floating point |
64BF | 64-bit floating point |
Examples
Query the pixel type of a single raster column:
SELECT st_celltype(raster_obj) FROM raster_table;Result:
st_celltype
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