Struct PredicateSplitterRule 

pub struct PredicateSplitterRule { /* private fields */ }

DataFusion optimizer rule that splits predicates for lookup joins.

Runs TopDown to catch Filter nodes above LookupJoinNode first.

Two cases:

1. Filter above LookupJoinNode — absorb the filter, classify each conjunct, and assign to pushdown or local.
2. Direct LookupJoinNode — re-classify existing pushdown predicates (e.g., after a previous pass added them).

Implementations

impl PredicateSplitterRule

pub fn new(capabilities: SourceCapabilitiesRegistry) -> Self

Creates a new rule with the given capabilities registry.

Trait Implementations

impl Debug for PredicateSplitterRule

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

Formats the value using the given formatter.

impl OptimizerRule for PredicateSplitterRule

fn name(&self) -> &'static str

A human readable name for this optimizer rule

fn apply_order(&self) -> Option<ApplyOrder>

How should the rule be applied by the optimizer? See comments on ApplyOrder for details.

fn rewrite( &self, plan: LogicalPlan, _config: &dyn OptimizerConfig, ) -> Result<Transformed<LogicalPlan>>

Try to rewrite plan to an optimized form, returning Transformed::yes if the plan was rewritten and Transformed::no if it was not.

fn supports_rewrite(&self) -> bool

👎Deprecated since 47.0.0:

This method is no longer used

Does this rule support rewriting owned plans (rather than by reference)?