Struct elasticsearch_dsl::search::queries::term_level::ExistsQuery

pub struct ExistsQuery { /* fields omitted */ }

Returns documents that contain an indexed value for a field.

An indexed value may not exist for a document’s field due to a variety of reasons:

• The field in the source JSON is null or []
• The field has "index" : false set in the mapping
• The length of the field value exceeded an ignore_above setting in the mapping
• The field value was malformed and ignore_malformed was defined in the mapping

To create exists query:

Query::exists("test");

https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-exists-query.html

Implementations

impl ExistsQuery

pub fn boost(self, boost: impl TryInto<Boost>) -> Self

Floating point number used to decrease or increase the relevance scores of a query. Defaults to 1.0.

You can use the boost parameter to adjust relevance scores for searches containing two or more queries.

Boost values are relative to the default value of 1.0. A boost value between 0 and 1.0 decreases the relevance score. A value greater than 1.0 increases the relevance score.

pub fn name(self, name: impl Into<String>) -> Self

You can use named queries to track which queries matched returned documents. If named queries are used, the response includes a matched_queries property for each hit.

https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-bool-query.html#named-queries

Trait Implementations

impl Clone for ExistsQuery

fn clone(&self) -> ExistsQuery

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ExistsQuery

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

Formats the value using the given formatter.

impl From<ExistsQuery> for Query

fn from(q: ExistsQuery) -> Self

Performs the conversion.

impl From<ExistsQuery> for Option<Query>

fn from(q: ExistsQuery) -> Self

Performs the conversion.

impl PartialEq<ExistsQuery> for ExistsQuery

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=.

impl Serialize for ExistsQuery

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

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for ExistsQuery