Module datafusion::physical_optimizer::enforce_distribution

EnforceDistribution optimizer rule inspects the physical plan with respect to distribution requirements and adds RepartitionExecs to satisfy them when necessary. If increasing parallelism is beneficial (and also desirable according to the configuration), this rule increases partition counts in the physical plan.

Structs

• EnforceDistribution
  The EnforceDistribution rule ensures that distribution requirements are met. In doing so, this rule will increase the parallelism in the plan by introducing repartitioning operators to the physical plan.