code: Integer getColPrecRadix(int i) {
  
          ti.setTypeCode(table.getColumn(i).getDataType().getJDBCTypeCode());
  
          return ti.getNumPrecRadix();
      }
docs: Retrieves the number base that should be used to interpret the
  specified column's numeric precision, as reported by getColSize(int).
  
  @param i zero-based column index
  @return the number base that should be used to
  interpret the column's numeric precision,
  as reported by getColSize(int).