Method or_where_contains

perro_source/core/perro_csv/src/lib.rs:588–590

(self, col: &str, needle: &str)

    ///
    /// Hash-only lookups cannot distinguish collisions. Use [`Self::select`] when the original
    /// header text is available.
    pub fn select_hashes(mut self, cols: &[u64]) -> Self {
        self.select_cols = Some(
            cols.iter()
                .filter_map(|col| self.table.header_index_hash(*col))
                .collect(),