Trait RoutinePlanExpressions 

pub trait RoutinePlanExpressions {
    // Required method
    fn evaluate_constant_routine(
        &self,
        expression: &ScalarExpr,
    ) -> Result<Value, SQLError>;
}

Metadata and analysis capabilities borrowed for one optimizer invocation.

Required Methods

fn evaluate_constant_routine( &self, expression: &ScalarExpr, ) -> Result<Value, SQLError>

Execute only an immutable call whose inputs the planner proved constant. The existing runtime boundary retains authorization and session body caches.

Dyn Compatibility

This trait is dyn compatible.

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

Implementors