docs: public static String parseExplainViewCall(String statement)
      {
          Matcher matcher = ExplainViewCallPreamble.matcher(statement);
          if ( ! matcher.lookingAt()) {
              return null;
          }
          // This all could probably be done more elegantly via a group extracted
          // from a more comprehensive regexp.
          // Clean up any extra spaces around the remainder of the line,
          // which should be a view name.
          return statement.substring(matcher.end()).trim();
      }