id,summary,reporter,owner,description,type,status,priority,milestone,component,version,resolution,keywords,cc 1223,Unknown SRID to NULL,strk,pramsey,"I suggest we have ST_SRID() return null for a geometry/geography with unknown srid and that we either provide an ST_UnsetSRID or allow calling ST_SetSRID with a null argument as SRID. If we did this from the beginning we'd have no problem going from -1 to 0...",task,closed,medium,PostGIS 2.0.0,postgis,master,wontfix,,