Method select

perro_source/core/perro_csv/src/lib.rs:510–517

(mut self, cols: &[&str])

    Ne,
    Lt,
    Le,
    Gt,
    Ge,
}

#[derive(Clone, Debug)]
enum CsvPredicate {
    Text {
        col: usize,
        op: CsvCompare,
        value: String,