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Remove filter rewrite optimization for range aggregations when segmen…
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…t is not effective match all (opensearch-project#15194)



---------

Signed-off-by: Finn Carroll <[email protected]>
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finnegancarroll authored Aug 15, 2024
1 parent 1717b55 commit ef87b39
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1 change: 1 addition & 0 deletions CHANGELOG.md
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Expand Up @@ -49,6 +49,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
- Fix delete index template failed when the index template matches a data stream but is unused ([#15080](https://github.com/opensearch-project/OpenSearch/pull/15080))
- Fix array_index_out_of_bounds_exception when indexing documents with field name containing only dot ([#15126](https://github.com/opensearch-project/OpenSearch/pull/15126))
- Fixed array field name omission in flat_object function for nested JSON ([#13620](https://github.com/opensearch-project/OpenSearch/pull/13620))
- Fix range aggregation optimization ignoring top level queries ([#15194](https://github.com/opensearch-project/OpenSearch/pull/15194))

### Security

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Expand Up @@ -61,3 +61,94 @@ setup:
- match: { aggregations.histo.buckets.8.doc_count: 1 }
- match: { aggregations.histo.buckets.12.key_as_string: "2016-06-01T00:00:00.000Z" }
- match: { aggregations.histo.buckets.12.doc_count: 1 }

---
"Date histogram aggregation w/ filter query test":
- skip:
version: " - 2.99.99"
reason: Backport fix to 2.16

- do:
bulk:
refresh: true
index: dhisto-agg-w-query
body:
- '{"index": {}}'
- '{"routing": "route1", "date": "2024-08-12", "dow": "monday"}'
- '{"index": {}}'
- '{"routing": "route1", "date": "2024-08-14", "dow": "wednesday"}'
- '{"index": {}}'
- '{"routing": "route1", "date": "2024-08-19", "dow": "monday"}'
- '{"index": {}}'
- '{"routing": "route2", "date": "2024-08-13", "dow": "tuesday"}'
- '{"index": {}}'
- '{"routing": "route2", "date": "2024-08-15", "dow": "thursday"}'

- do:
search:
index: dhisto-agg-w-query
body:
query:
bool:
must:
match_all: {}
filter:
- terms:
routing:
- "route1"
aggregations:
weekHisto:
date_histogram:
field: date
calendar_interval: week
_source: false

- match: { hits.total.value: 3 }
- match: { aggregations.weekHisto.buckets.0.doc_count: 2 }
- match: { aggregations.weekHisto.buckets.1.doc_count: 1 }

---
"Date histogram aggregation w/ shared field range test":
- do:
bulk:
refresh: true
index: dhisto-agg-w-query
body:
- '{"index": {}}'
- '{"date": "2024-10-31"}'
- '{"index": {}}'
- '{"date": "2024-11-11"}'
- '{"index": {}}'
- '{"date": "2024-11-28"}'
- '{"index": {}}'
- '{"date": "2024-12-25"}'
- '{"index": {}}'
- '{"date": "2025-01-01"}'
- '{"index": {}}'
- '{"date": "2025-02-14"}'

- do:
search:
index: dhisto-agg-w-query
body:
profile: true
query:
range:
date:
gte: "2024-01-01"
lt: "2025-01-01"
aggregations:
monthHisto:
date_histogram:
field: date
calendar_interval: month
_source: false

- match: { hits.total.value: 4 }
- match: { aggregations.monthHisto.buckets.0.doc_count: 1 }
- match: { aggregations.monthHisto.buckets.1.doc_count: 2 }
- match: { aggregations.monthHisto.buckets.2.doc_count: 1 }
- match: { profile.shards.0.aggregations.0.debug.optimized_segments: 1 }
- match: { profile.shards.0.aggregations.0.debug.unoptimized_segments: 0 }
- match: { profile.shards.0.aggregations.0.debug.leaf_visited: 0 }
- match: { profile.shards.0.aggregations.0.debug.inner_visited: 0 }
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Expand Up @@ -673,3 +673,82 @@ setup:
- match: { aggregations.my_range.buckets.3.from: 1.5 }
- is_false: aggregations.my_range.buckets.3.to
- match: { aggregations.my_range.buckets.3.doc_count: 2 }

---
"Filter query w/ aggregation test":
- skip:
version: " - 2.99.99"
reason: Backport fix to 2.16

- do:
bulk:
refresh: true
index: range-agg-w-query
body:
- '{"index": {}}'
- '{"routing": "route1", "v": -10, "date": "2024-10-29"}'
- '{"index": {}}'
- '{"routing": "route1", "v": -5, "date": "2024-10-30"}'
- '{"index": {}}'
- '{"routing": "route1", "v": 10, "date": "2024-10-31"}'
- '{"index": {}}'
- '{"routing": "route2", "v": 15, "date": "2024-11-01"}'
- '{"index": {}}'
- '{"routing": "route2", "v": 20, "date": "2024-11-02"}'

- do:
search:
index: range-agg-w-query
body:
query:
bool:
must:
match_all: {}
filter:
- terms:
routing:
- "route1"
aggregations:
NegPosAgg:
range:
field: v
keyed: true
ranges:
- to: 0
key: "0"
- from: 0
key: "1"
_source: false

- match: { hits.total.value: 3 }
- match: { aggregations.NegPosAgg.buckets.0.doc_count: 2 }
- match: { aggregations.NegPosAgg.buckets.1.doc_count: 1 }

- do:
search:
index: range-agg-w-query
body:
query:
bool:
must:
match_all: {}
filter:
- terms:
routing:
- "route1"
aggregations:
HalloweenAgg:
date_range:
field: date
format: "yyyy-MM-dd"
keyed: true
ranges:
- to: "2024-11-01"
key: "to-october"
- from: "2024-11-01"
key: "from-september"
_source: false

- match: { hits.total.value: 3 }
- match: { aggregations.HalloweenAgg.buckets.to-october.doc_count: 3 }
- match: { aggregations.HalloweenAgg.buckets.from-september.doc_count: 0 }
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Expand Up @@ -10,7 +10,10 @@

import org.apache.lucene.index.LeafReaderContext;
import org.apache.lucene.index.PointValues;
import org.apache.lucene.search.ScoreMode;
import org.apache.lucene.search.Weight;
import org.opensearch.index.mapper.MappedFieldType;
import org.opensearch.search.internal.SearchContext;

import java.io.IOException;
import java.util.function.BiConsumer;
Expand Down Expand Up @@ -81,4 +84,19 @@ abstract FilterRewriteOptimizationContext.DebugInfo tryOptimize(
BiConsumer<Long, Long> incrementDocCount,
Ranges ranges
) throws IOException;

/**
* Checks whether the top level query matches all documents on the segment
*
* <p>This method creates a weight from the search context's query and checks whether the weight's
* document count matches the total number of documents in the leaf reader context.
*
* @param ctx the search context
* @param leafCtx the leaf reader context for the segment
* @return {@code true} if the segment matches all documents, {@code false} otherwise
*/
public static boolean segmentMatchAll(SearchContext ctx, LeafReaderContext leafCtx) throws IOException {
Weight weight = ctx.query().rewrite(ctx.searcher()).createWeight(ctx.searcher(), ScoreMode.COMPLETE_NO_SCORES, 1f);
return weight != null && weight.count(leafCtx) == leafCtx.reader().numDocs();
}
}
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Expand Up @@ -11,8 +11,6 @@
import org.apache.lucene.document.LongPoint;
import org.apache.lucene.index.LeafReaderContext;
import org.apache.lucene.index.PointValues;
import org.apache.lucene.search.ScoreMode;
import org.apache.lucene.search.Weight;
import org.opensearch.common.Rounding;
import org.opensearch.index.mapper.DateFieldMapper;
import org.opensearch.index.mapper.MappedFieldType;
Expand Down Expand Up @@ -156,19 +154,4 @@ private static long getBucketOrd(long bucketOrd) {
* Provides a function to produce bucket ordinals from the lower bound of the range
*/
protected abstract Function<Long, Long> bucketOrdProducer();

/**
* Checks whether the top level query matches all documents on the segment
*
* <p>This method creates a weight from the search context's query and checks whether the weight's
* document count matches the total number of documents in the leaf reader context.
*
* @param ctx the search context
* @param leafCtx the leaf reader context for the segment
* @return {@code true} if the segment matches all documents, {@code false} otherwise
*/
public static boolean segmentMatchAll(SearchContext ctx, LeafReaderContext leafCtx) throws IOException {
Weight weight = ctx.query().rewrite(ctx.searcher()).createWeight(ctx.searcher(), ScoreMode.COMPLETE_NO_SCORES, 1f);
return weight != null && weight.count(leafCtx) == leafCtx.reader().numDocs();
}
}
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Expand Up @@ -80,7 +80,6 @@ final FilterRewriteOptimizationContext.DebugInfo tryOptimize(
Ranges ranges
) throws IOException {
int size = Integer.MAX_VALUE;

BiConsumer<Integer, Integer> incrementFunc = (activeIndex, docCount) -> {
long bucketOrd = bucketOrdProducer().apply(activeIndex);
incrementDocCount.accept(bucketOrd, (long) docCount);
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Expand Up @@ -70,6 +70,7 @@
import java.util.function.Function;

import static org.opensearch.core.xcontent.ConstructingObjectParser.optionalConstructorArg;
import static org.opensearch.search.aggregations.bucket.filterrewrite.AggregatorBridge.segmentMatchAll;

/**
* Aggregate all docs that match given ranges.
Expand Down Expand Up @@ -310,8 +311,9 @@ public ScoreMode scoreMode() {

@Override
public LeafBucketCollector getLeafCollector(LeafReaderContext ctx, final LeafBucketCollector sub) throws IOException {
boolean optimized = filterRewriteOptimizationContext.tryOptimize(ctx, this::incrementBucketDocCount, false);
if (optimized) throw new CollectionTerminatedException();
if (segmentMatchAll(context, ctx) && filterRewriteOptimizationContext.tryOptimize(ctx, this::incrementBucketDocCount, false)) {
throw new CollectionTerminatedException();
}

final SortedNumericDoubleValues values = valuesSource.doubleValues(ctx);
return new LeafBucketCollectorBase(sub, values) {
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