Struct QueryFeatures 

pub struct QueryFeatures {

    pub triple_pattern_count: usize,
    pub variable_count: usize,
    pub filter_count: usize,
    pub optional_count: usize,
    pub union_count: usize,
    pub subquery_count: usize,
    pub has_group_by: bool,
    pub has_order_by: bool,
    pub has_limit: bool,
    pub has_offset: bool,
    pub has_distinct: bool,
    pub has_service: bool,
    pub has_values: bool,
    pub has_property_paths: bool,
    pub has_aggregates: bool,
    pub has_bind: bool,
    pub has_minus: bool,
    pub complexity_score: u32,
}

Structural features of a query

Fields

triple_pattern_count: usize

Number of triple patterns

variable_count: usize

Number of variables

filter_count: usize

Number of filters

optional_count: usize

Number of OPTIONAL blocks

union_count: usize

Number of UNION blocks

subquery_count: usize

Number of subqueries

has_group_by: bool

Has GROUP BY

has_order_by: bool

Has ORDER BY

has_limit: bool

Has LIMIT

has_offset: bool

Has OFFSET

has_distinct: bool

Has DISTINCT

has_service: bool

Has SERVICE (federated)

has_values: bool

Has VALUES clause

has_property_paths: bool

Has property paths

has_aggregates: bool

Has aggregates

has_bind: bool

Has BIND

has_minus: bool

Has MINUS

complexity_score: u32

Estimated complexity score

Trait Implementations

impl Clone for QueryFeatures

fn clone(&self) -> QueryFeatures

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for QueryFeatures

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

Formats the value using the given formatter.

impl Default for QueryFeatures

fn default() -> QueryFeatures

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for QueryFeatures

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Hash for QueryFeatures

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for QueryFeatures

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for QueryFeatures

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for QueryFeatures

impl StructuralPartialEq for QueryFeatures