Running Grass-6.4.0RC5, using the v.distance -a option (all features),
the creation of an output table shows a bug. If I try to use two output
columns, v.distance is only picking up one column name.
Example in Spearfish:
v.distance from=archsites to=bugsites -a upload=dist,to_attr
column=distant,to_cat to_column=cat
...works fine to output results to screen. Add the table option:
v.distance from=archsites to=bugsites -a upload=dist,to_attr
column=distant,to_cat to_column=cat table=distance_report
...brings the following error:
DBMI-DBF driver error:
Column 'distance' already exists (duplicate name)
Cannot create table.
Error in db_execute_immediate()
Unable to create table: 'create table distance_report (from_cat integer,
distance double precision, distance double precision )'
The same error occurs using the MySQL and Sqlite drivers.
For now, I'll pipeline the screen output to a text file.
Richard C
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