AQEPropagateEmptyRelation Adaptive Logical Optimization¶

AQEPropagateEmptyRelation is a logical optimization in Adaptive Query Execution.

AQEPropagateEmptyRelation is a Catalyst rule for transforming logical plans (Rule[LogicalPlan]).

Creating Instance¶

AQEPropagateEmptyRelation takes no arguments to be created.

AQEPropagateEmptyRelation is created when:

• AQEOptimizer is requested for the default batches (of adaptive optimizations)

Executing Rule¶

apply(
  plan: LogicalPlan): LogicalPlan

apply...FIXME

apply is part of the Rule abstraction.