Apply TSDB jump table and offset construction optimizations to binary doc values #127278
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jordan-powers
added
>non-issue
auto-backport
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Pinging @elastic/es-storage-engine (Team:StorageEngine) |
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martijnvg
approved these changes
Apr 24, 2025
| meta.writeLong(offset); // docsWithFieldOffset | ||
| final short jumpTableEntryCount; | ||
| if (disiAccumulator != null) { | ||
| jumpTableEntryCount = disiAccumulator.build(data); |
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I think at the place disiAccumulator should always be not null? (if numDocsWithField is not -1 or equal to max doc and valueProducer support optimized merge)
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True, I'll remove the check
| @@ -152,6 +153,102 @@ public long longValue() throws IOException { | |||
| }; | |||
| } | |||
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| /** Tracks state of one binary sub-reader that we are merging */ | |||
| private static class BinaryDocValuesSub extends DocIDMerger.Sub { | |||
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This is copied from Lucene's DocValuesConsumer?
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Yes, except that it returns an anonymous subclass of TsdbDocValuesProducer instead of EmptyDocValuesProducer so that it can support merge stats.
| } | ||
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| d.add(new BinaryDocValuesField("bytes_1", new BytesRef(tags[i % tags.length]))); |
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maybe rename bytes_1 to tags_as_bytes?
💚 Backport successful
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elasticsearchmachine
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Apr 24, 2025
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Applies the merge optimizations from #126499 and #126732 to binary field types for the ES819 codec.
Relates to #126111