I have saved a raster in the PostGIS database and want to select it as PNG. However, ST_AsPNG only accepts rasters with pixel type 8 BUI or 16 BUI. But in this case it is a raster with pixel type 32 BF. The only possibility I have seen so far is ST_Reclass. But you need to define a 'reclassarg' which makes it unnecessarily complicating for my usage, because I only want to change the pixel type. Does anyone know a more suitable method for this purpose?