Trait datafusion::physical_plan::planner::ExtensionPlanner

pub trait ExtensionPlanner {
    fn plan_extension(
        &self, 
        node: &dyn UserDefinedLogicalNode, 
        inputs: &[Arc<dyn ExecutionPlan>], 
        ctx_state: &ExecutionContextState
    ) -> Result<Option<Arc<dyn ExecutionPlan>>>;
}

This trait exposes the ability to plan an ExecutionPlan out of a LogicalPlan.

Required methods

fn plan_extension(
    &self,
    node: &dyn UserDefinedLogicalNode,
    inputs: &[Arc<dyn ExecutionPlan>],
    ctx_state: &ExecutionContextState
) -> Result<Option<Arc<dyn ExecutionPlan>>>

Create a physical plan for a UserDefinedLogicalNode. This errors when the planner knows how to plan the concrete implementation of node but errors while doing so, and None when the planner does not know how to plan the node and wants to delegate the planning to another ExtensionPlanner.

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Implementors

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