This topic describes the ST_overlaps function. This function identifies the spatial relationship between two raster objects or between a raster object and a geometric object to determine whether the first specified object overlaps with the second.
Syntax
bool ST_overlaps(raster rast1, raster rast2);
bool ST_overlaps(raster rast, geometry geom);
bool ST_overlaps(geometry geom, raster rast);
Parameters
Parameter | Description |
---|---|
rast1 | The raster object 1. |
rast2 | The raster object 2. |
rast | A raster object. |
geom | A geometric object. |
Example
SELECT a.id
FROM tbl_a a, tbl_b b
WHERE ST_Contains(a.rast, b.rast)