Struct TableRefWithStats 

pub struct TableRefWithStats {
    pub name: String,
    pub n_pages: u64,
    pub n_rows: u64,
    pub has_stats: bool,
}

A table reference paired with cost-model inputs for join ordering.

Used by order_join_inputs_with_hints to decide the evaluation order of a multi-table FROM clause. The has_stats flag lets the caller distinguish ANALYZE-populated inputs from pure heuristic fallbacks: when every reference is marked has_stats == false, callers should preserve the source order (there is nothing to optimize on).

The struct is intentionally minimal so it can be constructed directly by crates/fsqlite-core/src/connection.rs without pulling in the full bound-statement type surface. Wire-up from connection.rs is staged separately (see PLANNER-3 follow-up); for now this lives in the planner and is exercised via unit tests.

Fields

name: String

Table name (used only for diagnostics / test assertions).

n_pages: u64

Estimated B-tree pages — passed to estimate_cost_ext.

n_rows: u64

Estimated row count — passed to estimate_cost_ext. 0 means “no row-count hint available”; see Self::has_stats.

has_stats: bool

Whether this input was populated from sqlite_stat1 / ANALYZE. When false, ordering callers should fall back to source order.

Implementations

impl TableRefWithStats

pub fn from_table_stats(stats: &TableStats) -> Self

Construct a TableRefWithStats from a TableStats snapshot.

has_stats is derived from the stats source: only StatsSource::Analyze (populated from sqlite_stat1) counts as authoritative for join ordering.

Trait Implementations

impl Clone for TableRefWithStats

fn clone(&self) -> TableRefWithStats

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TableRefWithStats

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

Formats the value using the given formatter.

impl Eq for TableRefWithStats

impl PartialEq for TableRefWithStats

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for TableRefWithStats