final FessConfig fessConfig = ComponentUtil.getFessConfig();
        final QueryBuilder queryBuilder = QueryBuilders.termQuery(fessConfig.getIndexFieldSegment(), sessionId);
        return deleteByQueryBuilder(searchEngineClient, index, queryBuilder);
    }

    /**
     * Deletes all documents associated with the specified configuration ID.
     *
     * @param configId the configuration ID to delete documents for