Name
ST_SRID — Returns the spatial reference identifier of the raster as defined in spatial_ref_sys table.
Synopsis
integer
ST_SRID
(
raster
rast
)
;
Description
Returns the spatial reference identifier of the raster object as defined in the spatial_ref_sys table.
![[Note]](./images/note.png)
|
|
|
From PostGIS 2.0+ the srid of a non-georeferenced raster/geometry is 0 instead of the prior -1. |
Examples
SELECT ST_SRID(rast) As srid
FROM dummy_rast WHERE rid=1;
srid
----------------
0