ST_SkewY function to query the Y-scale skew of a raster object - ApsaraDB RDS

Queries the skew of a raster object in the Y direction within its spatial reference system.

Prerequisites

The raster object must have a valid spatial reference system identifier (SRID).

float8 ST_SkewY(raster raster_obj)

Parameter	Description
`raster_obj`	The name of the raster object.

The following example queries the X-direction and Y-direction skew values for all raster objects in raster_table.

select st_skewx(rast), st_skewy(rast)
from raster_table;

Output:

 st_skewx | st_skewy
----------+-----------
      0.3 |      0.2