Struct SelectedRowGroupStats 

pub struct SelectedRowGroupStats {
    pub selected_row_groups: usize,
    pub total_row_groups: usize,
    pub selected_compressed_bytes: Option<u64>,
    pub total_compressed_bytes: Option<u64>,
    pub selected_rows: Option<u64>,
    pub total_rows: Option<u64>,
    /* private fields */
}

Row-group selection evidence for a local Parquet source.

None on the parent diagnostics means the source does not have enough row-group metadata to distinguish unknown selection from an all-row-group scan. Byte counts are optional because some frontends only know row counts or file sizes at lowering time.

Fields

selected_row_groups: usize

Number of row groups selected for scanning.

total_row_groups: usize

Total row groups represented by the source metadata.

selected_compressed_bytes: Option<u64>

Selected compressed source-read bytes, when known.

total_compressed_bytes: Option<u64>

Total compressed source-read bytes, when known.

selected_rows: Option<u64>

Selected source rows, when known.

total_rows: Option<u64>

Total source rows, when known.

Implementations

impl SelectedRowGroupStats

pub fn selected_source_bytes(&self) -> Option<u64>

Best available selected byte evidence for source-read sizing.

pub fn total_source_bytes(&self) -> Option<u64>

Best available total byte evidence for source-read sizing.

Trait Implementations

impl Clone for SelectedRowGroupStats

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SelectedRowGroupStats

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

Formats the value using the given formatter.

impl Eq for SelectedRowGroupStats

impl PartialEq for SelectedRowGroupStats

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for SelectedRowGroupStats