I am new at Postgis and I'm groping...
I pretend to rasterize some weighty vector layers in Postgis, do some map algebra and reclassification with them and visualize intermediate as well as final rasters in Qgis. I don’t want to have physical raster files (like geotiff or jpg) outside of DB, except at the end of the work flow.
Has anyone experienced a similar case?
I am thinking about using gdal virtual raster.
Can I use Postgis raster spatial functions with this option, or just gdal functions?
Has anyone experienced problems in Qgis viewing with gdal virtual raster from postgis db?