Struct QueryStep 

pub struct QueryStep {
    pub step: usize,
    pub description: String,
    pub cost: f32,
    pub input_size: usize,
    pub output_size: usize,
}

A single step in query execution

Fields

step: usize

Step number (execution order)

description: String

Description of what this step does

cost: f32

Estimated cost for this step (0.0 - 1.0)

input_size: usize

Expected input size (number of candidates)

output_size: usize

Expected output size (number of results)

Trait Implementations

impl Clone for QueryStep

fn clone(&self) -> QueryStep

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for QueryStep

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for QueryStep

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for QueryStep

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.