code: static private SnowflakeDateTimeFormat specializedFormatter(
        Map<String, Object> parameters,
        String id,
        String param,
        String defaultFormat)
    {
      String sqlFormat =
          SnowflakeDateTimeFormat.effectiveSpecializedTimestampFormat(
              (String) effectiveParamValue(parameters, param),
              defaultFormat);
      SnowflakeDateTimeFormat formatter = new SnowflakeDateTimeFormat(sqlFormat);
      if (logger.isDebugEnabled())
      {
        logger.debug("sql {} format: {}, java {} format: {}",
                     id, sqlFormat,
                     id, formatter.toSimpleDateTimePattern());
      }
      return formatter;
    }
docs: Helper function building a formatter for a specialized timestamp type.
  Note that it will be based on either the 'param' value if set,
  or the default format provided.