Enum JoinRowEncoding 

pub enum JoinRowEncoding {
    Compact,
    CpuFriendly,
}

Row encoding strategy for join state (F057).

Controls how join rows are serialized for storage. The encoding choice affects the tradeoff between memory usage and CPU access speed.

Variants

Compact

Compact encoding using Arrow IPC format.

• Smaller memory footprint
• Higher CPU decode cost per access
• Best when: state exceeds memory, disk spills frequent

CpuFriendly

CPU-friendly encoding with inlined primitive values.

• Larger memory footprint (~20-40% more)
• Faster access (~30-50% improvement per RisingWave benchmarks)
• Best when: state fits in memory, CPU-bound workloads

Trait Implementations

impl Clone for JoinRowEncoding

fn clone(&self) -> JoinRowEncoding

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for JoinRowEncoding

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

Formats the value using the given formatter.

impl Default for JoinRowEncoding

fn default() -> JoinRowEncoding

Returns the “default value” for a type.

impl Display for JoinRowEncoding

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

Formats the value using the given formatter.

impl FromStr for JoinRowEncoding

type Err = String

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl PartialEq for JoinRowEncoding

fn eq(&self, other: &JoinRowEncoding) -> 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 Copy for JoinRowEncoding

impl Eq for JoinRowEncoding

impl StructuralPartialEq for JoinRowEncoding