Struct PkPointLookupPlan 

pub struct PkPointLookupPlan {
    pub table_name: String,
    pub pk_columns: Vec<String>,
    pub param_to_pk_col: Vec<(usize, usize)>,
    pub projection: ProjectionPlan,
    /* private fields */
}

Cached plan for primary key point lookup queries

Fields

table_name: String

Table name (normalized to uppercase for case-insensitive matching)

pk_columns: Vec<String>

Primary key column names in order

param_to_pk_col: Vec<(usize, usize)>

Mapping from parameter index (0-based) to PK column index e.g., for WHERE pk1 = ? AND pk2 = ?, this would be [(0, 0), (1, 1)]

projection: ProjectionPlan

Projection type

Implementations

impl PkPointLookupPlan

pub fn get_or_resolve<F>(&self, resolver: F) -> Option<&ResolvedProjection>

where F: FnOnce(&ProjectionPlan) -> Option<ResolvedProjection>,

Get or initialize the resolved projection for this plan

The resolver function is called only on the first invocation and takes the projection plan to resolve column names to indices.

pub fn is_resolved(&self) -> bool

Check if projection has been resolved

Trait Implementations

impl Clone for PkPointLookupPlan

fn clone(&self) -> PkPointLookupPlan

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PkPointLookupPlan

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

Formats the value using the given formatter.