Struct KeyedHashJoinStrategyOptions 

#[non_exhaustive]
pub struct KeyedHashJoinStrategyOptions { /* private fields */ }

Threshold policy used by capability admission and runtime keyed-hash join strategy selection.

This is an expert Rust surface only. Keep server/session/user-facing settings out until the admission and runtime contracts have a reviewed tuning model.

Implementations

impl KeyedHashJoinStrategyOptions

pub fn large_keyed_hash_build_row_threshold(&self) -> u64

Build row threshold used to classify a keyed hash build as large.

pub fn large_keyed_hash_build_bytes_threshold(&self) -> u64

Build byte threshold used alongside row evidence to classify a large build.

pub fn large_keyed_hash_probe_bytes_threshold(&self) -> u64

Probe byte threshold used when considering partitioned execution.

pub fn small_reusable_hash_build_row_threshold(&self) -> u64

Build row bound for considering a reusable hash build even for one probe.

pub fn small_reusable_hash_build_bytes_threshold(&self) -> u64

Build byte bound paired with the small reusable-build row threshold.

pub fn small_one_shot_probe_bytes_threshold(&self) -> u64

Probe byte bound under which a one-shot join can avoid partitioning.

pub fn max_small_probe_left_one_shot_build_row_threshold(&self) -> u64

Maximum build rows for the one-shot left-join path with a small probe.

pub fn max_small_probe_left_one_shot_build_bytes_threshold(&self) -> u64

Maximum build bytes for the one-shot left-join path with a small probe.

pub fn validate(&self) -> Result<(), QueryError>

Validates internal consistency for keyed hash-join strategy thresholds.

Zero remains accepted because this policy is still an expert Rust surface and callers may use zero to disable narrow strategy branches. The checks only reject threshold orderings that make “small” and “large” evidence overlap contradictorily.

pub fn with_large_keyed_hash_build_row_threshold( self, rows: u64, ) -> KeyedHashJoinStrategyOptions

Sets the large-build row threshold. Call Self::validate to check its ordering against the small reusable-build threshold.

pub fn with_large_keyed_hash_build_bytes_threshold( self, bytes: u64, ) -> KeyedHashJoinStrategyOptions

Sets the large-build threshold in bytes. Call Self::validate to check its ordering against the small reusable-build byte threshold.

pub fn with_small_reusable_hash_build_row_threshold( self, rows: u64, ) -> KeyedHashJoinStrategyOptions

Sets the small reusable-build row threshold. This setter does not validate its ordering against the large-build threshold.

pub fn with_small_reusable_hash_build_bytes_threshold( self, bytes: u64, ) -> KeyedHashJoinStrategyOptions

Sets the small reusable-build byte threshold. This setter does not validate its ordering against the large-build byte threshold.

Trait Implementations

impl Clone for KeyedHashJoinStrategyOptions

fn clone(&self) -> KeyedHashJoinStrategyOptions

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for KeyedHashJoinStrategyOptions

impl Debug for KeyedHashJoinStrategyOptions

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

Formats the value using the given formatter.

impl Default for KeyedHashJoinStrategyOptions

fn default() -> KeyedHashJoinStrategyOptions

Returns the “default value” for a type.

impl Eq for KeyedHashJoinStrategyOptions

impl PartialEq for KeyedHashJoinStrategyOptions

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for KeyedHashJoinStrategyOptions