Struct CteCacheEntry 

pub struct CteCacheEntry {

    pub data: Arc<Vec<u8>>,
    pub row_count: u64,
    pub data_size: usize,
    pub created_at: Instant,
    pub last_accessed: Instant,
    pub access_count: u64,
    pub reuse_probability: f64,
    pub cte_hash: String,
    pub cte_definition: String,
    pub priority: CachePriority,
    pub compute_cost_ms: u64,
    pub access_frequency: f64,
    pub dependent_tables: Vec<String>,
}

CTE cache entries

Fields

data: Arc<Vec<u8>>

Resulting data (shared using Arc)

row_count: u64

Number of result rows

data_size: usize

Result size (bytes)

created_at: Instant

Creation time

last_accessed: Instant

Last access time

access_count: u64

Number of visits

reuse_probability: f64

Estimated probability of reuse

cte_hash: String

CTE definition hash (used to identify identical CTEs)

cte_definition: String

CTE definition text

priority: CachePriority

Cache priority

compute_cost_ms: u64

Compute cost (milliseconds)

access_frequency: f64

Access frequency (per minute)

dependent_tables: Vec<String>

Dependent tables (for invalidation detection)

Implementations

impl CteCacheEntry

pub fn new( cte_hash: String, cte_definition: String, data: Vec<u8>, row_count: u64, compute_cost_ms: u64, ) -> Self

Creating a new cache entry

pub fn estimate_memory(&self) -> usize

Estimate memory usage (bytes)

pub fn value_score(&self) -> f64

Calculate cache value score (for eviction decisions)

pub fn record_access(&mut self)

Recorded visits

pub fn age(&self) -> Duration

Get Cache Age

pub fn idle_time(&self) -> Duration

Getting free time

pub fn cache_score(&self) -> f64

Calculate cache score (for LRU elimination decisions) The lower the score, the more likely you are to be eliminated

Trait Implementations

impl Clone for CteCacheEntry

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 CteCacheEntry

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

Formats the value using the given formatter.