Method iter

datafusion/pruning/src/pruning_predicate.rs:771–775

Returns an iterator over items in columns (see doc on `self.columns` for details)

(
        &self,
    )

    /// Returns an iterator over items in columns (see doc on
    /// `self.columns` for details)
    pub(crate) fn iter(
        &self,
    ) -> impl Iterator<Item = &(phys_expr::Column, StatisticsType, Field)> {
        self.columns.iter()
    }

    fn find_stat_column(
        &self,