Struct AnalyzeSource 

pub struct AnalyzeSource {
    pub table: String,
    pub node: u32,
    pub emitted: u64,
    pub scanned: Option<u64>,
    pub fullscan_steps: Option<u64>,
    pub ratio: Option<f64>,
    pub advisory: Option<String>,
    pub sqlite_plan: Option<String>,
    pub scanned_kind: &'static str,
}

The numbers for one source leaf — the row the CLI renders per table.

Fields

table: String

Source table name.

node: u32

The throwaway pipeline’s source NodeId index (correlation only; the graph is gone).

emitted: u64

Rows this source vended into the pipeline — the CountingSource tally. Backend- agnostic (memory or SQLite), the one number available even without the feature.

scanned: Option<u64>

SQLite scan work proxy (vm_steps) for this leaf — None when the analyze feature (⇒ scan-stats) is off, or on a memory source (no SQLite). This is a v1 work-proxy, not a row count; the true rows-visited (NVISIT) row-ratio is v2.

fullscan_steps: Option<u64>

Rows an un-indexed full scan stepped over (fullscan_steps) — the direct “a missing index made SQLite scan this table” signal. None without the feature.

ratio: Option<f64>

scanned / emitted (work per emitted row). None when scanned is unavailable or emitted == 0. The lead diagnostic: a good index keeps it near-flat; a missing one makes it explode.

advisory: Option<String>

A concrete CREATE INDEX … line, present when this leaf full-scanned and the static advisory (derive_query) names an index for it (§3.5).

sqlite_plan: Option<String>

The SQLite access path chosen for this leaf’s SELECT — the planner’s EXPLAIN text ("SCAN comments" vs "SEARCH comments USING INDEX …"). None without the analyze feature. The plain-language companion to the ratio: a full SCAN on an amplified leaf is the smoking gun the number flags.

scanned_kind: &'static str

What scanned measures, for honest rendering: "vm_steps (work proxy)" when the feature is on, else "unavailable".

Trait Implementations

impl Clone for AnalyzeSource

fn clone(&self) -> AnalyzeSource

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AnalyzeSource

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

Formats the value using the given formatter.

impl Serialize for AnalyzeSource

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.