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Cache prefixes of a length of 2

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This commit is contained in:
Clément Renault
2020-01-14 18:07:14 +01:00
parent 54dacb362d
commit 44fec1b6c9
2 changed files with 47 additions and 50 deletions
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10
meilisearch-core/src/query_tree.rs
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@ -370,8 +370,14 @@ pub fn traverse_query_tree<'o, 'txn>(
let Query { id, prefix, kind } = query;
let docids = match kind {
QueryKind::Tolerant(word) => {
if *prefix && word.len() == 1 {
let prefix = [word.as_bytes()[0], 0, 0, 0];
if *prefix && word.len() <= 2 {
let prefix = {
let mut array = [0; 4];
let bytes = word.as_bytes();
array[..bytes.len()].copy_from_slice(bytes);
array
};
let result = ctx.prefix_postings_lists.prefix_postings_list(reader, prefix)?.unwrap_or_default();
let distance = 0;
postings.insert((query, word.clone().into_bytes(), distance), result.matches);