Struct tidb_query_common::execute_stats::ExecSummaryCollectorEnabled

pub struct ExecSummaryCollectorEnabled {
    output_index: usize,
    counts: ExecSummary,
}

A normal ExecSummaryCollector that simply collects execution summaries. It acts like collect = true.

Fields

output_index: usize

counts: ExecSummary

Trait Implementations

impl ExecSummaryCollector for ExecSummaryCollectorEnabled

type DurationRecorder = Instant

fn new(output_index: usize) -> ExecSummaryCollectorEnabled

Creates a new instance with specified output slot index.

fn on_start_iterate(&mut self) -> Self::DurationRecorder

Returns an instance that will record elapsed duration and increase the iterations counter. The instance should be later passed back to on_finish_iterate when processing of next_batch is completed.

fn on_finish_iterate(&mut self, dr: Self::DurationRecorder, rows: usize)

fn collect(&mut self, target: &mut [ExecSummary])

Takes and appends current execution summary into target.