code: public boolean isCaseSensitive(int column) throws SQLException {
      Field field = getField(column);
      return connection.getTypeInfo().isCaseSensitive(field.getOID());
    }
docs: {@inheritDoc}
  
  <p>Does a column's case matter? ASSUMPTION: Any field that is not obviously case insensitive is
  assumed to be case sensitive
  
  @param column the first column is 1, the second is 2...
  @return true if so
  @exception SQLException if a database access error occurs