Get cached subquery result
(&self, key: &SubqueryCacheKey)
| 392 | |
| 393 | /// Get cached subquery result |
| 394 | pub fn get(&self, key: &SubqueryCacheKey) -> Option<SubqueryResult> { |
| 395 | let mut entries = self.entries.write().unwrap(); |
| 396 | |
| 397 | if let Some(entry) = entries.get_mut(key) { |
| 398 | if entry.is_valid() { |
| 399 | // Update access info |
| 400 | entry.metadata.update_access(); |
| 401 | entry.hit_count += 1; |
| 402 | entry.last_hit = Instant::now(); |
| 403 | |
| 404 | // Update stats |
| 405 | { |
| 406 | let mut stats = self.stats.write().unwrap(); |
| 407 | stats.hits += 1; |
| 408 | stats.total_execution_time_saved_ms += entry.execution_time.as_millis() as u64; |
| 409 | |
| 410 | // Track by subquery type |
| 411 | match &entry.result { |
| 412 | SubqueryResult::Boolean(_) => stats.boolean_cache_hits += 1, |
| 413 | SubqueryResult::Scalar(_) => stats.scalar_cache_hits += 1, |
| 414 | SubqueryResult::Set(_) => stats.set_cache_hits += 1, |
| 415 | SubqueryResult::FullResult(_) => stats.full_result_cache_hits += 1, |
| 416 | } |
| 417 | } |
| 418 | |
| 419 | Some(entry.result.clone()) |
| 420 | } else { |
| 421 | // Remove expired entry |
| 422 | let removed_entry = entries.remove(key).unwrap(); |
| 423 | let size = removed_entry.size_bytes(); |
| 424 | |
| 425 | { |
| 426 | let mut current_memory = self.current_memory.write().unwrap(); |
| 427 | *current_memory = current_memory.saturating_sub(size); |
| 428 | } |
| 429 | |
| 430 | { |
| 431 | let mut stats = self.stats.write().unwrap(); |
| 432 | stats.misses += 1; |
| 433 | stats.current_entries = entries.len(); |
| 434 | stats.memory_bytes = *self.current_memory.read().unwrap(); |
| 435 | } |
| 436 | |
| 437 | None |
| 438 | } |
| 439 | } else { |
| 440 | // Cache miss |
| 441 | let mut stats = self.stats.write().unwrap(); |
| 442 | stats.misses += 1; |
| 443 | None |
| 444 | } |
| 445 | } |
| 446 | |
| 447 | /// Insert subquery result into cache |
| 448 | pub fn insert( |
no test coverage detected