bhv.selectCursor(cb -> {
                cb.query().matchAll();
                cb.query().addOrderBy_RequestedAt_Asc();
            }, new LogEntityRowHandler<ClickLog>() {
                @Override
                public void handle(final ClickLog entity) {
                    final StringBuilder buf = new StringBuilder();
                    buf.append('{');
                    appendJson("id", entity.getId(), buf).append(',');

    //                                                                       =============
    @Override
    public String asTableDbName() {
        return "click_log";
    }

    @Override
    public String xgetAliasName() {
        return "click_log";
    }

    // ===================================================================================

import java.time.format.DateTimeFormatter;
import java.util.Map;

import org.codelibs.fess.entity.SearchLogEvent;
import org.codelibs.fess.opensearch.log.bsentity.BsClickLog;

/**
 * @author FreeGen
 */
public class ClickLog extends BsClickLog implements SearchLogEvent {

    private static final long serialVersionUID = 1L;

    private Map<String, Object> fields;

    @Override
    public String getId() {

# backup

# Target files for index backup.
index.backup.targets=fess_basic_config.bulk,fess_config.bulk,fess_user.bulk,system.properties,fess.json,doc.json
# Target log files for index backup.
index.backup.log.targets=click_log.ndjson,favorite_log.ndjson,search_log.ndjson,user_info.ndjson
# Timeout for loading index backup logs.
index.backup.log.load.timeout=60000

# logging

# Application packages for logging.

    String INDEX_BACKUP_TARGETS = "index.backup.targets";

    /** The key of the configuration. e.g. click_log.ndjson,favorite_log.ndjson,search_log.ndjson,user_info.ndjson */
    String INDEX_BACKUP_LOG_TARGETS = "index.backup.log.targets";

    /** The key of the configuration. e.g. 60000 */

                final ClickLog clickLog = new ClickLog();
                clickLog.setUrlId((String) doc.get(fessConfig.getIndexFieldId()));
                clickLog.setUrl(url);
                clickLog.setRequestedAt(systemHelper.getCurrentTimeAsLocalDateTime());
                clickLog.setQueryRequestedAt(DfTypeUtil.toLocalDateTime(Long.parseLong(form.rt)));
                clickLog.setUserSessionId(userSessionId);

     *
     * @param clickLog The click log.
     */
    public void addClickLog(final ClickLog clickLog) {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        if (clickLogQueue.size() > fessConfig.getLoggingClickMaxQueueSizeAsInteger()) {
            logger.warn("[{}] The click log queue size is too large. Skipped the click log: {} {}", clickLog);
            return;
        }

     *
     * @param e The log entity to delete (ClickLog, FavoriteLog, UserInfo, or SearchLog)
     * @throws FessSystemException if the entity type is not recognized
     */
    public void deleteSearchLog(final Object e) {
        if (e instanceof final ClickLog clickLog) {
            clickLogBhv.delete(clickLog);
        } else if (e instanceof final FavoriteLog favoriteLog) {