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Avoid computing the BM25 weight if scoring is disabled

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This commit is contained in:
Paul Masurel
2020-11-25 14:35:49 +09:00
parent c079133f3a
commit e9aa27dace
2 changed files with 9 additions and 3 deletions
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src/query/bm25.rs
+1 -1
View File
@@ -106,7 +106,7 @@ impl BM25Weight {
BM25Weight::new(idf_explain, avg_fieldnorm)
}
fn new(idf_explain: Explanation, average_fieldnorm: Score) -> BM25Weight {
pub(crate) fn new(idf_explain: Explanation, average_fieldnorm: Score) -> BM25Weight {
let weight = idf_explain.value() * (1.0 + K1);
BM25Weight {
idf_explain,
src/query/term_query/term_query.rs
+8 -2
View File
@@ -1,7 +1,7 @@
use super::term_weight::TermWeight;
use crate::query::bm25::BM25Weight;
use crate::query::Query;
use crate::query::Weight;
use crate::query::{Explanation, Query};
use crate::schema::IndexRecordOption;
use crate::Searcher;
use crate::Term;
@@ -100,7 +100,13 @@ impl TermQuery {
field_entry.name()
)));
}
let bm25_weight = BM25Weight::for_terms(searcher, &[term])?;
let bm25_weight;
if scoring_enabled {
bm25_weight = BM25Weight::for_terms(searcher, &[term])?;
} else {
bm25_weight =
BM25Weight::new(Explanation::new("<no score>".to_string(), 1.0f32), 1.0f32);
}
let index_record_option = if scoring_enabled {
self.index_record_option
} else {