code: public int getPrecision(final int column) throws SQLException {
              final int type = getColumnType(column);
              
              if (type == -1) {
                  return 0;
              } // end of if
  
              final Integer p = Defaults.jdbcTypePrecisions.get(type);
  
              return (p == null) ? 0 : p;
          }
docs: {@inheritDoc}