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Fix bug in exact_attribute rr implementation

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This commit is contained in:
Loïc Lecrenier 2023-04-26 10:40:05 +02:00
parent 3421125a55
commit 55bad07c16
2 changed files with 24 additions and 23 deletions
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43
milli/src/search/new/exact_attribute.rs
View File

@ -91,13 +91,14 @@ impl State {
universe: &RoaringBitmap,
query_graph: &QueryGraph,
) -> Result<Self> {
// An ordered list of the (remaining) query terms, with data extracted from them:
// 0. exact subterm. If it doesn't exist, the term is skipped.
// 1. start position of the term
// 2. id of the term
let mut count_all_positions = 0;
struct ExactTermInfo {
exact_term: ExactTerm,
start_position: u16,
start_term_id: u8,
position_count: usize,
}
let mut exact_term_position_ids: Vec<(ExactTerm, u16, u8)> =
let mut exact_terms: Vec<ExactTermInfo> =
Vec::with_capacity(query_graph.nodes.len() as usize);
for (_, node) in query_graph.nodes.iter() {
match &node.data {
@ -107,34 +108,35 @@ impl State {
} else {
continue;
};
count_all_positions += term.positions.len();
exact_term_position_ids.push((
exact_terms.push(ExactTermInfo {
exact_term,
*term.positions.start(),
*term.term_ids.start(),
))
start_position: *term.positions.start(),
start_term_id: *term.term_ids.start(),
position_count: term.positions.len(),
});
}
QueryNodeData::Deleted | QueryNodeData::Start | QueryNodeData::End => continue,
}
}
exact_term_position_ids.sort_by_key(|(_, _, id)| *id);
exact_term_position_ids.dedup_by_key(|(_, _, id)| *id);
exact_terms.sort_by_key(|x| x.start_term_id);
exact_terms.dedup_by_key(|x| x.start_term_id);
let count_all_positions = exact_terms.iter().fold(0, |acc, x| acc + x.position_count);
// bail if there is a "hole" (missing word) in remaining query graph
if let Some((_, _, first_id)) = exact_term_position_ids.first() {
if *first_id != 0 {
if let Some(e) = exact_terms.first() {
if e.start_term_id != 0 {
return Ok(State::Empty(query_graph.clone()));
}
} else {
return Ok(State::Empty(query_graph.clone()));
}
let mut previous_id = 0;
for (_, _, id) in exact_term_position_ids.iter().copied() {
if id < previous_id || id - previous_id > 1 {
for e in exact_terms.iter() {
if e.start_term_id < previous_id || e.start_term_id - previous_id > 1 {
return Ok(State::Empty(query_graph.clone()));
} else {
previous_id = id;
previous_id = e.start_term_id;
}
}
@ -147,10 +149,9 @@ impl State {
// first check that for each term, there exists some attribute that has this term at the correct position
//"word-position-docids";
let mut candidates = universe.clone();
let words_positions: Vec<(Vec<_>, _)> = exact_term_position_ids
let words_positions: Vec<(Vec<_>, _)> = exact_terms
.iter()
.copied()
.map(|(term, position, _)| (term.interned_words(ctx).collect(), position))
.map(|e| (e.exact_term.interned_words(ctx).collect(), e.start_position))
.collect();
for (words, position) in &words_positions {
if candidates.is_empty() {

4
milli/tests/assets/test_set.ndjson
View File

@ -134,7 +134,7 @@
"typo_rank": 0,
"proximity_rank": 0,
"attribute_rank": 1,
"exact_rank": 3,
"exact_rank": 1,
"asc_desc_rank": 5,
"sort_by_rank": 2,
"geo_rank": 34692,
@ -369,7 +369,7 @@
"typo_rank": 0,
"proximity_rank": 0,
"attribute_rank": 1,
"exact_rank": 2,
"exact_rank": 0,
"asc_desc_rank": 2,
"sort_by_rank": 1,
"geo_rank": 9339230,