Struct InMemoryPageStore 

pub struct InMemoryPageStore {
    blobs: Vec<Bytes>,
    resident: usize,
}

The default PageStore, holding blobs on the heap in a Vec<Bytes>.

Peak memory grows with the row group size; use a spilling backend to bound it.

Fields

blobs: Vec<Bytes>

resident: usize

Running total of resident blob bytes, kept in step with put/take.

Trait Implementations

impl Debug for InMemoryPageStore

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

Formats the value using the given formatter.

impl Default for InMemoryPageStore

fn default() -> InMemoryPageStore

Returns the “default value” for a type.

impl PageStore for InMemoryPageStore

fn put(&mut self, value: Bytes) -> Result<PageKey>

Store value, returning a handle that can later be passed to take.

fn take(&mut self, key: PageKey) -> Result<Bytes>

Take back the blob previously stored under key.

fn memory_size(&self) -> usize

The number of bytes this store currently holds in memory (resident on the heap), used to report the writer’s memory footprint.