Trait DynamicPredicateSource 

pub trait DynamicPredicateSource: Send + Sync {
    // Required methods
    fn runtime_range(&self) -> RuntimeRange;
    fn filters_rows(&self) -> bool;
    fn can_bypass(&self) -> bool;

    // Provided method
    fn read_order(&self) -> Option<ReadOrder> { ... }
}

A reader’s view of a predicate that a producer sets at run time.

Required Methods

fn runtime_range(&self) -> RuntimeRange

fn filters_rows(&self) -> bool

Whether the producer has published a predicate that rejects rows.

fn can_bypass(&self) -> bool

Whether a reader may stop evaluating the predicate when it rejects too little: it stays as it is once set, and the producer checks every row again.

Provided Methods

fn read_order(&self) -> Option<ReadOrder>

Dyn Compatibility

This trait is dyn compatible.

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

Implementors