Enum CacheEntry 

pub enum CacheEntry {
    MemoryArrow(ArrayRef),
    MemoryLiquid(LiquidArrayRef),
    MemorySqueezedLiquid(LiquidSqueezedArrayRef),
    DiskLiquid(DataType),
    DiskArrow(DataType),
}

A cached entry storing data in various formats.

Variants

MemoryArrow(ArrayRef)

Cached batch in memory as Arrow array.

MemoryLiquid(LiquidArrayRef)

Cached batch in memory as liquid array.

MemorySqueezedLiquid(LiquidSqueezedArrayRef)

Cached batch in memory as squeezed liquid array.

DiskLiquid(DataType)

Cached batch on disk as liquid array.

DiskArrow(DataType)

Cached batch on disk as Arrow array.

Implementations

impl CacheEntry

pub fn memory_arrow(array: ArrayRef) -> Self

Construct a cached batch stored as an in-memory Arrow array.

pub fn memory_liquid(array: LiquidArrayRef) -> Self

Construct a cached batch stored as an in-memory Liquid array.

pub fn memory_squeezed_liquid(array: LiquidSqueezedArrayRef) -> Self

Construct a cached batch stored as an in-memory squeezed Liquid array.

pub fn disk_liquid(data_type: DataType) -> Self

Construct a cached batch stored on disk as Liquid bytes.

pub fn disk_arrow(data_type: DataType) -> Self

Construct a cached batch stored on disk as Arrow bytes.

pub fn memory_usage_bytes(&self) -> usize

Memory usage reported by the underlying representation.

pub fn reference_count(&self) -> usize

Reference count (if any) of the backing storage.

Trait Implementations

impl Clone for CacheEntry

fn clone(&self) -> CacheEntry

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for CacheEntry

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

Formats the value using the given formatter.

impl Display for CacheEntry

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

Formats the value using the given formatter.

impl From<&CacheEntry> for CachedBatchType

fn from(batch: &CacheEntry) -> Self

Converts to this type from the input type.