Struct ScanMetricsSnapshot 

pub struct ScanMetricsSnapshot {
    pub reader_metrics: DeltaScanMetricsSnapshot,
    pub uses_arrow_view_types: bool,
    pub configured_batch_size_rows: Option<u64>,
    pub dynamic_partition_tasks_pruned: u64,
    pub dynamic_partition_tasks_kept: u64,
    pub dynamic_filters_received: u64,
    pub dynamic_filters_accepted: u64,
    pub dynamic_filters_rejected: u64,
    pub dynamic_partition_filter_checks: u64,
    pub dynamic_partition_tasks_kept_unusable_metadata: u64,
    pub dynamic_partition_tasks_kept_unevaluable_filter: u64,
}

Immutable point-in-time DataFusion scan metrics.

Fields

reader_metrics: DeltaScanMetricsSnapshot

Delta reader planning and execution metrics.

uses_arrow_view_types: bool

Whether the provider requested Arrow view arrays for string and binary data columns.

configured_batch_size_rows: Option<u64>

Configured DataFusion batch row target observed at execution.

dynamic_partition_tasks_pruned: u64

File tasks pruned before admission by a dynamic partition filter. A task is either a whole physical file or one independently read file range.

dynamic_partition_tasks_kept: u64

File tasks kept after consulting retained dynamic partition filters. A task is either a whole physical file or one independently read file range.

dynamic_filters_received: u64

Physical filters offered to the post-optimization hook.

dynamic_filters_accepted: u64

Offered filters retained for dynamic partition pruning.

dynamic_filters_rejected: u64

Offered filters rejected by the dynamic partition policy.

dynamic_partition_filter_checks: u64

Dynamic partition filters checked against file tasks during admission.

dynamic_partition_tasks_kept_unusable_metadata: u64

Kept file tasks with missing, invalid, or unparsable partition metadata.

dynamic_partition_tasks_kept_unevaluable_filter: u64

Kept file tasks whose dynamic filter was unavailable or unevaluable.

Trait Implementations

impl Clone for ScanMetricsSnapshot

fn clone(&self) -> ScanMetricsSnapshot

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ScanMetricsSnapshot

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for ScanMetricsSnapshot

impl PartialEq for ScanMetricsSnapshot

fn eq(&self, other: &ScanMetricsSnapshot) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for ScanMetricsSnapshot