Enum SummaryQueryShape 

#[non_exhaustive]
pub enum SummaryQueryShape {
    PredicateCount {
        predicate: String,
        variable: String,
    },
    TripleCount {
        variable: String,
    },
    PredicateTotals {
        predicate_variable: String,
        count_variable: String,
    },
    PredicateList {
        variable: String,
    },
    PredicateDistinctCount {
        variable: String,
    },
    TripleExists,
    PredicateExists {
        predicate: String,
    },
}

Query shapes that can be answered exactly from crate::range::SummaryView predicate totals, without opening the triple index.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

PredicateCount

SELECT (COUNT(*) AS ?n) WHERE { ?s <p> ?o }

Fields

predicate: String

variable: String

TripleCount

SELECT (COUNT(*) AS ?n) WHERE { ?s ?p ?o }

Fields

variable: String

PredicateTotals

SELECT ?p (COUNT(*) AS ?n) WHERE { ?s ?p ?o } GROUP BY ?p

Fields

predicate_variable: String

count_variable: String

PredicateList

SELECT DISTINCT ?p WHERE { ?s ?p ?o }

Fields

variable: String

PredicateDistinctCount

SELECT (COUNT(DISTINCT ?p) AS ?n) WHERE { ?s ?p ?o }

Fields

variable: String

TripleExists

ASK { ?s ?p ?o }

PredicateExists

ASK { ?s <p> ?o }

Fields

predicate: String

Trait Implementations

impl Clone for SummaryQueryShape

fn clone(&self) -> SummaryQueryShape

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SummaryQueryShape

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

Formats the value using the given formatter.

impl Eq for SummaryQueryShape

impl PartialEq for SummaryQueryShape

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for SummaryQueryShape