Struct QueryShapeCache 

pub struct QueryShapeCache { /* private fields */ }

Bounded LRU cache for SQL templates and value-free bind instructions.

Bind values are deliberately never cached. Template lookup compares the complete structured key, preserving correctness across hash collisions. The legacy intern entry point compares the complete SQL text.

Implementations

impl QueryShapeCache

pub fn new(capacity: usize) -> Result<QueryShapeCache, ConfigError>

pub fn intern(&self, query: RenderedPgQuery) -> (RenderedPgQuery, bool)

Reuses the cached SQL allocation when this exact shape is present.

pub fn render_list<E>( &self, plan: &QueryPlan<E>, ) -> Result<(RenderedPgQuery, bool), RenderError>

where E: SearchEntity,

Renders on a miss; on a hit, only rebuilds this request’s bind values.

pub fn render_cluster<E>( &self, plan: &QueryPlan<E>, options: Option<&SearchOptions<E>>, ) -> Result<(RenderedPgQuery, bool), RenderError>

where E: SearchEntity,

pub fn render_sum<E>( &self, plan: &QueryPlan<E>, field: FieldId, ) -> Result<(RenderedPgQuery, bool), RenderError>

where E: SearchEntity,

pub fn render_window_list<E>( &self, plan: &QueryPlan<E>, ) -> Result<(RenderedPgQuery, bool), RenderError>

where E: SearchEntity,

pub fn stats(&self) -> ShapeCacheStats

pub fn clear(&self)

Trait Implementations

impl Debug for QueryShapeCache

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

Formats the value using the given formatter.