Method insert

parquet/src/arrow/array_reader/row_group_cache.rs:88–105

Inserts an array into the cache for the given column and starting row ID Returns true if the array was inserted, false if it would exceed the cache size limit

(&mut self, column_idx: usize, batch_id: BatchID, array: ArrayRef)

    /// Inserts an array into the cache for the given column and starting row ID
    /// Returns true if the array was inserted, false if it would exceed the cache size limit
    pub fn insert(&mut self, column_idx: usize, batch_id: BatchID, array: ArrayRef) -> bool {
        let array_size = get_array_memory_size_for_cache(&array);

        // Check if adding this array would exceed the cache size limit
        if self.current_cache_size + array_size > self.max_cache_bytes {
            return false; // Cache is full, don't insert
        }

        let key = CacheKey {
            column_idx,
            batch_id,
        };

        let existing = self.cache.insert(key, array);
        assert!(existing.is_none());
        self.current_cache_size += array_size;
        true
    }

    /// Retrieves a cached array for the given column and row ID
    /// Returns None if not found in cache