Struct TableMemoryStats 

pub struct TableMemoryStats {
    pub name: String,
    pub hot_rows: u64,
    pub cold_rows: u64,
    pub hot_encoded_bytes: u64,
    pub approx_resident_bytes: u64,
    pub index_count: u64,
    pub approx_index_bytes: u64,
}

v7.31 (memory campaign — ceiling-first / never-die, design v1) — per-table slice of the engine’s resident-memory accounting. hot_encoded_bytes is the storage layer’s maintained meter (what the rows encode to); approx_resident_bytes is what they COST in RAM (per-cell enum slots + heap payloads via approx_row_bytes) — the gap between the two is the representation multiplier the round-26 report measured at ~11× end-to-end.

Fields

name: String

hot_rows: u64

cold_rows: u64

Cached cold-row count (refreshed by ANALYZE — see Table::cold_row_count’s staleness contract).

hot_encoded_bytes: u64

approx_resident_bytes: u64

index_count: u64

approx_index_bytes: u64

BTree indices are walked entry-by-entry (operator surface, not a hot path); NSW graphs and BRIN are parametric ESTIMATES until spg-storage carries its own byte meters (7.31.x follow-up in the design doc).

Trait Implementations

impl Clone for TableMemoryStats

fn clone(&self) -> TableMemoryStats

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TableMemoryStats

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

Formats the value using the given formatter.