id,summary,reporter,owner,description,type,status,priority,milestone,component,version,resolution,keywords,cc 2805,[raster] Expected return from ST_MapAlgebra callback function is not documented,strk,robe,"The documentation for ST_MapAlgebra does not say what is the semantic of the value returned by the user callback function. In particular, it doesn't mention you can return NULL to mean ""nodata"" (or can you ?)",defect,new,medium,PostGIS Fund Me,documentation,master,,,dustymugs. robe