fn fmt_as()

in src/columnar_storage/src/read.rs [127:138]


    fn fmt_as(
        &self,
        _t: datafusion::physical_plan::DisplayFormatType,
        f: &mut std::fmt::Formatter,
    ) -> std::fmt::Result {
        write!(
            f,
            "MergeExec: [primary_keys: {}, keep_builtin: {}]",
            self.num_primary_keys, self.keep_builtin
        )?;
        Ok(())
    }