Module operator 

Compatibility re-exports for optimizer operator metadata.

New code should import logical operators from logical and physical operators from physical so implementation rules stay distinct from logical rewrites.

Enums

LogicalPlanClass

LogicalPlanKind

PhysicalPlanClass

PhysicalPlanKind

PlanChildren

Traits

LogicalPlanNode

PhysicalPlanNode

PlanNode

Functions

plan_class_counts

plan_operator_counts

visit_plan