Struct PushdownSort 

pub struct PushdownSort;

A PhysicalOptimizerRule that attempts to push down sort requirements to data sources.

See module-level documentation for details.

Implementations

impl PushdownSort

pub fn new() -> Self

Trait Implementations

impl Clone for PushdownSort

fn clone(&self) -> PushdownSort

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PushdownSort

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

Formats the value using the given formatter.

impl Default for PushdownSort

fn default() -> PushdownSort

Returns the “default value” for a type.

impl PhysicalOptimizerRule for PushdownSort

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.