Struct TableStats 

pub struct TableStats {
    pub row_count: u64,
    pub avg_row_size_bytes: u64,
    pub index_on: Vec<String>,
}

Per-table statistics used to calibrate cost estimates.

Fields

row_count: u64

Approximate number of rows in the table.

avg_row_size_bytes: u64

Average row size in bytes (used to estimate page reads).

index_on: Vec<String>

Column names that have an index.

Trait Implementations

impl Clone for TableStats

fn clone(&self) -> TableStats

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TableStats

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

Formats the value using the given formatter.

impl Default for TableStats

fn default() -> Self

Returns the “default value” for a type.