Struct datafusion_optimizer::scalar_subquery_to_join::ScalarSubqueryToJoin

pub struct ScalarSubqueryToJoin {}

Optimizer rule for rewriting subquery filters to joins

Implementations

impl ScalarSubqueryToJoin

pub fn new() -> Self

Trait Implementations

impl Default for ScalarSubqueryToJoin

fn default() -> ScalarSubqueryToJoin

Returns the “default value” for a type.

impl OptimizerRule for ScalarSubqueryToJoin

fn try_optimize( &self, plan: &LogicalPlan, config: &dyn OptimizerConfig ) -> Result<Option<LogicalPlan>>

Try and rewrite plan to an optimized form, returning None if the plan cannot be optimized by this rule.

fn name(&self) -> &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.