Trait QueryPlanner 

pub trait QueryPlanner {
    // Required method
    fn plan_cost(&self, query: &str) -> Option<f64>;
}

Required Methods

fn plan_cost(&self, query: &str) -> Option<f64>

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl QueryPlanner for RedDBEngine