Struct PlanCostBreakdown 

pub struct PlanCostBreakdown {
    pub estimated_rows: u64,
    pub cost: u64,
    pub cpu: u64,
    pub random_io: u64,
    pub sequential_io: u64,
    pub output_rows: u64,
}

Cardinality and unweighted logical work, plus the weighted scalar total.

CPU work is the scalar normalization unit. Random/sequential work describes access patterns, not physical file pages; output work counts produced rows.

Fields

estimated_rows: u64

cost: u64

cpu: u64

random_io: u64

sequential_io: u64

output_rows: u64

Implementations

impl PlanCostBreakdown

pub fn with_cardinality_floor(self) -> PlanCostBreakdown

pub fn new( estimated_rows: u64, cpu: u64, random_io: u64, sequential_io: u64, output_rows: u64, ) -> PlanCostBreakdown

pub fn from_scalar(cost: PlanCost) -> PlanCostBreakdown

pub fn with_cpu( self, estimated_rows: u64, cpu: u64, output_rows: u64, ) -> PlanCostBreakdown

pub fn with_random_io( self, estimated_rows: u64, random_io: u64, output_rows: u64, ) -> PlanCostBreakdown

pub fn combine_with_cpu( left: PlanCostBreakdown, right: PlanCostBreakdown, estimated_rows: u64, cpu: u64, output_rows: u64, ) -> PlanCostBreakdown

pub fn as_plan_cost(self) -> PlanCost

Trait Implementations

impl Clone for PlanCostBreakdown

fn clone(&self) -> PlanCostBreakdown

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for PlanCostBreakdown

impl Debug for PlanCostBreakdown

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

Formats the value using the given formatter.

impl Eq for PlanCostBreakdown

impl PartialEq for PlanCostBreakdown

fn eq(&self, other: &PlanCostBreakdown) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for PlanCostBreakdown