(Tue May 22 20:35:17 2018)                                                      
v.vol.rst input=BHMat1All_May12@Toronto                                         
WARNING: Missing column name
ERROR: Column type of wcolumn is not supported (must be integer or double)
(Tue May 22 20:35:17 2018) Command finished (0 sec)                             
(Tue May 22 20:35:28 2018)                                                      
v.vol.rst input=BHMat1All_May12@Toronto wcolumn=cat                             
25 records selected from table
Processing all selected output files will require 0 bytes of disk space for temp files
WARNING: Points are more dense than specified 'DMIN'--ignored 47799 points (remain 29088)
WARNING: Unable to create <(null)> raster map without cross_input raster map being specified
WARNING:
Overshoot -- increase in tension suggested.
Overshoot occurs at (3324,8871,270) cell
The w-value is -3.500526, wmin is 0.000000,wmax is 34.000000