Struct QueryPlanner 

pub struct QueryPlanner { /* private fields */ }

Query planner that combines rewriting, caching, and cost estimation

Implementations

impl QueryPlanner

pub fn new() -> Self

Create a new query planner

pub fn with_cache_size(cache_size: usize) -> Self

Create with custom cache size

pub fn with_stats_provider(provider: Arc<dyn StatsProvider>) -> Self

Create a planner backed by a real stats provider.

pub fn plan(&mut self, query: QueryExpr) -> QueryPlan

Plan a query - returns cached plan if available

pub fn invalidate_cache<F>(&mut self, predicate: F)

where F: Fn(&str) -> bool,

Invalidate cache entries matching a predicate

pub fn clear_cache(&mut self)

Clear the entire cache

pub fn cache_stats(&self) -> CacheStats

Get cache statistics

Trait Implementations

impl Default for QueryPlanner

fn default() -> Self

Returns the “default value” for a type.