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Enabling sort optimizatin back for half_float with custom comparators
Signed-off-by: Chaitanya Gohel <[email protected]>
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55 changes: 55 additions & 0 deletions
55
.../java/org/opensearch/index/fielddata/fieldcomparator/HalfFloatValuesComparatorSource.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,55 @@ | ||
| /* | ||
| * SPDX-License-Identifier: Apache-2.0 | ||
| * | ||
| * The OpenSearch Contributors require contributions made to | ||
| * this file be licensed under the Apache-2.0 license or a | ||
| * compatible open source license. | ||
| */ | ||
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| package org.opensearch.index.fielddata.fieldcomparator; | ||
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| import org.apache.lucene.index.LeafReaderContext; | ||
| import org.apache.lucene.index.NumericDocValues; | ||
| import org.apache.lucene.search.FieldComparator; | ||
| import org.apache.lucene.search.LeafFieldComparator; | ||
| import org.opensearch.index.fielddata.IndexNumericFieldData; | ||
| import org.opensearch.index.search.comparators.HalfFloatComparator; | ||
| import org.opensearch.search.MultiValueMode; | ||
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| import java.io.IOException; | ||
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| /** | ||
| * Comparator source for half_float values. | ||
| * | ||
| * @opensearch.internal | ||
| */ | ||
| public class HalfFloatValuesComparatorSource extends FloatValuesComparatorSource { | ||
| public HalfFloatValuesComparatorSource( | ||
| IndexNumericFieldData indexFieldData, | ||
| Object missingValue, | ||
| MultiValueMode sortMode, | ||
| Nested nested | ||
| ) { | ||
| super(indexFieldData, missingValue, sortMode, nested); | ||
| } | ||
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| @Override | ||
| public FieldComparator<?> newComparator(String fieldname, int numHits, boolean enableSkipping, boolean reversed) { | ||
| assert indexFieldData == null || fieldname.equals(indexFieldData.getFieldName()); | ||
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| final float fMissingValue = (Float) missingObject(missingValue, reversed); | ||
| // NOTE: it's important to pass null as a missing value in the constructor so that | ||
| // the comparator doesn't check docsWithField since we replace missing values in select() | ||
| return new HalfFloatComparator(numHits, fieldname, null, reversed, enableSkipping && this.enableSkipping) { | ||
| @Override | ||
| public LeafFieldComparator getLeafComparator(LeafReaderContext context) throws IOException { | ||
| return new HalfFloatLeafComparator(context) { | ||
| @Override | ||
| protected NumericDocValues getNumericDocValues(LeafReaderContext context, String field) throws IOException { | ||
| return HalfFloatValuesComparatorSource.this.getNumericDocValues(context, fMissingValue).getRawFloatValues(); | ||
| } | ||
| }; | ||
| } | ||
| }; | ||
| } | ||
| } |
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