Struct LateralTopKPlan 

pub struct LateralTopKPlan {
    pub outer: Box<SqlPlan>,
    pub outer_alias: Option<String>,
    pub inner_collection: String,
    pub inner_filters: Vec<Filter>,
    pub inner_order_by: Vec<SortKey>,
    pub inner_limit: usize,
    pub correlation_keys: Vec<(String, String)>,
    pub lateral_alias: String,
    pub projection: Vec<Projection>,
    pub left_join: bool,
}

Per-family payloads of the larger SqlPlan variants. Per-family payloads of the larger SqlPlan variants. Per-family payloads of the larger SqlPlan variants. Payload of SqlPlan::LateralTopK.

Fields

outer: Box<SqlPlan>

Plan producing outer rows.

outer_alias: Option<String>

Alias used to qualify outer table columns (e.g. "u").

inner_collection: String

Inner collection to scan.

inner_filters: Vec<Filter>

Pre-filter applied to inner rows (non-correlated filters).

inner_order_by: Vec<SortKey>

Sort keys for the inner per-outer-row result.

inner_limit: usize

Maximum number of inner rows per outer row.

correlation_keys: Vec<(String, String)>

Equi-join pairs (outer_col, inner_col).

lateral_alias: String

Alias under which inner rows are presented.

projection: Vec<Projection>

Post-lateral projection.

left_join: bool

LEFT join semantics: preserve outer rows even when inner is empty.

Trait Implementations

impl Clone for LateralTopKPlan

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 LateralTopKPlan

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

Formats the value using the given formatter.