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Fix geosort bug

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This commit is contained in:
Louis Dureuil 2023-12-12 12:08:09 +01:00
parent 65e49b7092
commit 11e2a2c1aa
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1 changed files with 18 additions and 13 deletions
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31
milli/src/search/new/geo_sort.rs
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@ -107,12 +107,16 @@ impl<Q: RankingRuleQueryTrait> GeoSort<Q> {
/// Refill the internal buffer of cached docids based on the strategy.
/// Drop the rtree if we don't need it anymore.
fn fill_buffer(&mut self, ctx: &mut SearchContext) -> Result<()> {
fn fill_buffer(
&mut self,
ctx: &mut SearchContext,
geo_candidates: &RoaringBitmap,
) -> Result<()> {
debug_assert!(self.field_ids.is_some(), "fill_buffer can't be called without the lat&lng");
debug_assert!(self.cached_sorted_docids.is_empty());
// lazily initialize the rtree if needed by the strategy, and cache it in `self.rtree`
let rtree = if self.strategy.use_rtree(self.geo_candidates.len() as usize) {
let rtree = if self.strategy.use_rtree(geo_candidates.len() as usize) {
if let Some(rtree) = self.rtree.as_ref() {
// get rtree from cache
Some(rtree)
@ -131,7 +135,7 @@ impl<Q: RankingRuleQueryTrait> GeoSort<Q> {
if self.ascending {
let point = lat_lng_to_xyz(&self.point);
for point in rtree.nearest_neighbor_iter(&point) {
if self.geo_candidates.contains(point.data.0) {
if geo_candidates.contains(point.data.0) {
self.cached_sorted_docids.push_back(point.data);
if self.cached_sorted_docids.len() >= cache_size {
break;
@ -143,7 +147,7 @@ impl<Q: RankingRuleQueryTrait> GeoSort<Q> {
// and we insert the points in reverse order they get reversed when emptying the cache later on
let point = lat_lng_to_xyz(&opposite_of(self.point));
for point in rtree.nearest_neighbor_iter(&point) {
if self.geo_candidates.contains(point.data.0) {
if geo_candidates.contains(point.data.0) {
self.cached_sorted_docids.push_front(point.data);
if self.cached_sorted_docids.len() >= cache_size {
break;
@ -155,8 +159,7 @@ impl<Q: RankingRuleQueryTrait> GeoSort<Q> {
// the iterative version
let [lat, lng] = self.field_ids.unwrap();
let mut documents = self
.geo_candidates
let mut documents = geo_candidates
.iter()
.map(|id| -> Result<_> { Ok((id, geo_value(id, lat, lng, ctx.index, ctx.txn)?)) })
.collect::<Result<Vec<(u32, [f64; 2])>>>()?;
@ -216,9 +219,10 @@ impl<'ctx, Q: RankingRuleQueryTrait> RankingRule<'ctx, Q> for GeoSort<Q> {
assert!(self.query.is_none());
self.query = Some(query.clone());
self.geo_candidates &= universe;
if self.geo_candidates.is_empty() {
let geo_candidates = &self.geo_candidates & universe;
if geo_candidates.is_empty() {
return Ok(());
}
@ -226,7 +230,7 @@ impl<'ctx, Q: RankingRuleQueryTrait> RankingRule<'ctx, Q> for GeoSort<Q> {
let lat = fid_map.id("_geo.lat").expect("geo candidates but no fid for lat");
let lng = fid_map.id("_geo.lng").expect("geo candidates but no fid for lng");
self.field_ids = Some([lat, lng]);
self.fill_buffer(ctx)?;
self.fill_buffer(ctx, &geo_candidates)?;
Ok(())
}
@ -238,9 +242,10 @@ impl<'ctx, Q: RankingRuleQueryTrait> RankingRule<'ctx, Q> for GeoSort<Q> {
universe: &RoaringBitmap,
) -> Result<Option<RankingRuleOutput<Q>>> {
let query = self.query.as_ref().unwrap().clone();
self.geo_candidates &= universe;
if self.geo_candidates.is_empty() {
let geo_candidates = &self.geo_candidates & universe;
if geo_candidates.is_empty() {
return Ok(Some(RankingRuleOutput {
query,
candidates: universe.clone(),
@ -261,7 +266,7 @@ impl<'ctx, Q: RankingRuleQueryTrait> RankingRule<'ctx, Q> for GeoSort<Q> {
}
};
while let Some((id, point)) = next(&mut self.cached_sorted_docids) {
if self.geo_candidates.contains(id) {
if geo_candidates.contains(id) {
return Ok(Some(RankingRuleOutput {
query,
candidates: RoaringBitmap::from_iter([id]),
@ -276,7 +281,7 @@ impl<'ctx, Q: RankingRuleQueryTrait> RankingRule<'ctx, Q> for GeoSort<Q> {
// if we got out of this loop it means we've exhausted our cache.
// we need to refill it and run the function again.
self.fill_buffer(ctx)?;
self.fill_buffer(ctx, &geo_candidates)?;
self.next_bucket(ctx, logger, universe)
}