Be careful when using the output of the widths command blindly as an input command:
Columns with SQL data type:  | 
Return as a width:  | 
VARCHAR  | 
"-4000"  | 
LONG VARCHAR  | 
"-32700"  | 
If this output is submitted as a command, these columns will be padded to these widths, regardless of the actual amount of data the column contains, resulting in large quantities of output.