This function performs a mosaic operation to integrate a raster object or object set into another raster object.
raster ST_MosaicTo(raster raster_obj,raster source);
|raster_obj||The destination raster object.|
|source||The source raster object or object set.|
The source and destination raster objects must meet the following requirements:
- They have the same number of bands.
- Either all of them are geographically referenced, or none of them is geographically referenced. If all of them are geographically referenced, world coordinates (geographic coordinates) are used for the mosaic operation.
- Their pixel types can be different. If world coordinates are used for the mosaic operation, they must have the same spatial reference system identifier (SRID) and affine parameters.
Update raster_table Set raster_obj = ST_MosaicTo(raster_obj, Array(select raster_obj from raster_table where id < 10)) where id = 11;