Struct OpStats 

pub struct OpStats {
    pub bgp_count: usize,
    pub triple_count: usize,
    pub join_count: usize,
    pub filter_count: usize,
    pub union_count: usize,
    pub total_ops: usize,
}

Op statistics visitor

Fields

bgp_count: usize

triple_count: usize

join_count: usize

filter_count: usize

union_count: usize

total_ops: usize

Implementations

impl OpStats

pub fn new() -> OpStats

Create new stats collector

pub fn collect(op: &Op) -> OpStats

Collect stats from op

Trait Implementations

impl Debug for OpStats

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

Formats the value using the given formatter.

impl Default for OpStats

fn default() -> OpStats

Returns the “default value” for a type.

impl OpVisitor for OpStats

fn visit_bgp(&mut self, op: &OpBGP)

Visit BGP

fn visit_triple(&mut self, _op: &OpTriple)

Visit triple

fn visit_join(&mut self, _op: &OpJoin)

Visit join

fn visit_filter(&mut self, _op: &OpFilter)

Visit filter

fn visit_union(&mut self, _op: &OpUnion)

Visit union

fn visit_left_join(&mut self, _op: &OpLeftJoin)

Visit left join

fn visit_project(&mut self, _op: &OpProject)

Visit project

fn visit_distinct(&mut self, _op: &OpDistinct)

Visit distinct

fn visit_reduced(&mut self, _op: &OpReduced)

Visit reduced

fn visit_slice(&mut self, _op: &OpSlice)

Visit slice

fn visit_order(&mut self, _op: &OpOrder)

Visit order

fn visit_group(&mut self, _op: &OpGroup)

Visit group

fn visit_extend(&mut self, _op: &OpExtend)

Visit extend

fn visit_minus(&mut self, _op: &OpMinus)

Visit minus

fn visit_table(&mut self, _op: &OpTable)

Visit table

fn visit_sequence(&mut self, _op: &OpSequence)

Visit sequence

fn visit_disjunction(&mut self, _op: &OpDisjunction)

Visit disjunction

fn visit_null(&mut self, _op: &OpNull)

Visit null

fn visit_right_join(&mut self, _op: &OpRightJoin)

Visit right join

fn visit_cross_join(&mut self, _op: &OpCrossJoin)

Visit cross join

fn visit_intersect(&mut self, _op: &OpIntersect)

Visit intersect