Method finish

src/expr/src/relation.rs:3592–3605

Applies finishing actions to a [`RowCollection`], and reports the total time it took to run. Returns a [`RowCollectionIter`] that contains all of the response data, as well as the size of the response in bytes.

(
        &self,
        rows: RowCollection,
        max_result_size: u64,
        max_returned_query_size: Option<u64>,
        duration_histogram: &Histogram,
    )

    /// Returns a [`RowCollectionIter`] that contains all of the response data, as
    /// well as the size of the response in bytes.
    pub fn finish(
        &self,
        rows: RowCollection,
        max_result_size: u64,
        max_returned_query_size: Option<u64>,
        duration_histogram: &Histogram,
    ) -> Result<(RowCollectionIter, usize), String> {
        let now = Instant::now();
        let result = self.finish_inner(rows, max_result_size, max_returned_query_size);
        let duration = now.elapsed();
        duration_histogram.observe(duration.as_secs_f64());

        result
    }

    /// Implementation for [`RowSetFinishing::finish`].
    fn finish_inner(