Enum elastic::types::string::prelude::IndexOptions
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pub enum IndexOptions { Docs, Freqs, Positions, Offsets, }
The index_options
parameter controls what information is added to the inverted index, for search and highlighting purposes.
Variants
Docs
Only the doc number is indexed. Can answer the question Does this term exist in this field?
Freqs
Doc number and term frequencies are indexed. Term frequencies are used to score repeated terms higher than single terms.
Positions
Doc number, term frequencies, and term positions (or order) are indexed. Positions can be used for proximity or phrase queries.
Offsets
Doc number, term frequencies, positions, and start and end character offsets (which map the term back to the original string) are indexed. Offsets are used by the postings highlighter.
Trait Implementations
impl Copy for IndexOptions
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impl Clone for IndexOptions
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fn clone(&self) -> IndexOptions
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Returns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)
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Performs copy-assignment from source
. Read more
impl Serialize for IndexOptions
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fn serialize<S>(
&self,
serializer: S
) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error> where
S: Serializer,
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&self,
serializer: S
) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error> where
S: Serializer,
Serialize this value into the given Serde serializer. Read more