Struct CompactedRow

pub struct CompactedRow {
    pub row: Bytes,
}

CompactedRow is used in streaming executors’ cache, which takes less memory than Vec<Datum>. Executors need to serialize Row into CompactedRow before writing into cache.

Fields

row: Bytes

Implementations

impl CompactedRow

pub fn new(value_encoding_bytes: Bytes) -> Self

Create a new CompactedRow from given bytes. Caller must ensure the bytes are in valid value-encoding row format.

pub fn deserialize(&self, data_types: &[DataType]) -> Result<OwnedRow>

Deserialize CompactedRow into OwnedRow with given types.

Trait Implementations

impl Clone for CompactedRow

fn clone(&self) -> CompactedRow

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for CompactedRow

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

Formats the value using the given formatter.

impl Default for CompactedRow

fn default() -> CompactedRow

Returns the “default value” for a type.

impl EstimateSize for CompactedRow

fn estimated_heap_size(&self) -> usize

The estimated heap size of the current struct in bytes.

fn estimated_size(&self) -> usize

where Self: Sized,

The estimated total size of the current struct in bytes, including the estimated_heap_size and the size of Self.

impl<R: Row> From<R> for CompactedRow

fn from(row: R) -> Self

Converts to this type from the input type.

impl Hash for CompactedRow

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for CompactedRow

fn eq(&self, other: &CompactedRow) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for CompactedRow

impl StructuralPartialEq for CompactedRow