Struct CoalesceAsyncExecInput 

pub struct CoalesceAsyncExecInput {}

Optimizer rule that introduces CoalesceAsyncExec to reduce the number of async executions.

Implementations

impl CoalesceAsyncExecInput

pub fn new() -> Self

Trait Implementations

impl Debug for CoalesceAsyncExecInput

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

Formats the value using the given formatter.

impl Default for CoalesceAsyncExecInput

fn default() -> CoalesceAsyncExecInput

Returns the “default value” for a type.

impl PhysicalOptimizerRule for CoalesceAsyncExecInput

fn optimize( &self, plan: Arc<dyn ExecutionPlan>, config: &ConfigOptions, ) -> Result<Arc<dyn ExecutionPlan>>

Rewrite plan to an optimized form

fn name(&self) -> &str

A human readable name for this optimizer rule

fn schema_check(&self) -> bool

A flag to indicate whether the physical planner should validate that the rule will not change the schema of the plan after the rewriting. Some of the optimization rules might change the nullable properties of the schema and should disable the schema check.