Module datafusion::optimizer::optimizer

Query optimizer traits

Structs

• Optimizer
  A rule-based optimizer.
• OptimizerContext
  A standalone OptimizerConfig that can be used independently of DataFusion’s config management

Enums

• ApplyOrder
  If a rule is with ApplyOrder, it means the optimizer will derive to handle children instead of recursively handling in rule. We just need handle a subtree pattern itself.

Traits

• OptimizerConfig
  Options to control the DataFusion Optimizer.
• OptimizerRule
  OptimizerRule transforms one LogicalPlan into another which computes the same results, but in a potentially more efficient way. If there are no suitable transformations for the input plan, the optimizer should simply return it unmodified.