@Override
    public C columns(Path<?>... columns) {
        this.columns.addAll(Arrays.asList(columns));
        return (C) this;
    }
Set whether batches should be optimized into a single bulk operation.
Will revert to batches, if bulk is not supported
querydsl-sql/src/main/java/com/querydsl/sql/dml/AbstractSQLInsertClause.java