Struct datafusion::physical_optimizer::pipeline_fixer::PipelineFixer

pub struct PipelineFixer {}

The PipelineFixer rule tries to modify a given plan so that it can accommodate its infinite sources, if there are any. If this is not possible, the rule emits a diagnostic error message.

Implementations

impl PipelineFixer

pub fn new() -> Self

Trait Implementations

impl Default for PipelineFixer

fn default() -> PipelineFixer

Returns the “default value” for a type.

impl PhysicalOptimizerRule for PipelineFixer

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 valid 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.