public C addBatch() {
        if (subQueryBuilder != null) {
            subQuery = subQueryBuilder.select(values.toArray(new Expression[0])).clone();
            values.clear();
        }
        batches.add(new SQLInsertBatch(columns, values, subQuery));
        columns.clear();
        values.clear();
        subQuery = null;
        return (C) this;
    }
Add the current state of bindings as a batch item

@return the current object
querydsl-sql/src/main/java/com/querydsl/sql/dml/AbstractSQLInsertClause.java