* @param field the field name
     * @param texts the query texts
     * @return the query builder
     */
    protected QueryBuilder convertPhraseQuery(final FessConfig fessConfig, final QueryContext context, final PhraseQuery phraseQuery,
            final float boost, final String field, final String[] texts) {
        final String text = String.join(" ", texts);

        if (Constants.DEFAULT_FIELD.equals(field)) {