PostGIS

ST_Retile — Return a set of configured tiles from an arbitrarily tiled raster coverage.

+setof raster +ST_Retile(+`regclass `+tab, name col, geometry ext, float8 sfx, float8 sfy, int tw, int th, text algo='NearestNeighbor'`)`;

Return a set of tiles having the specified scale (sfx, sfy) and max size (tw, th) and covering the specified extent (ext) with data coming from the specified raster coverage (tab, col).

Algorithm options are: 'NearestNeighbor', 'Bilinear', 'Cubic', 'CubicSpline', and 'Lanczos'. Refer to: GDAL Warp resampling methods for more details.

Availability: 2.2.0

ST_CreateOverview