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Posted to issues@lucene.apache.org by "Greg Miller (Jira)" <ji...@apache.org> on 2021/08/23 23:37:00 UTC
[jira] [Created] (LUCENE-10062) Explore using SORTED_NUMERIC doc
values to encode taxonomy ordinals for faceting
Greg Miller created LUCENE-10062:
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Summary: Explore using SORTED_NUMERIC doc values to encode taxonomy ordinals for faceting
Key: LUCENE-10062
URL: https://issues.apache.org/jira/browse/LUCENE-10062
Project: Lucene - Core
Issue Type: Improvement
Components: modules/facet
Reporter: Greg Miller
We currently encode taxonomy ordinals using varint style packing in a binary doc values field. I suspect there have been a number of improvements to SortedNumericDocValues since taxonomy faceting was first introduced, and I plan to explore replacing the custom binary format we have today with a SORTED_NUMERIC type dv field instead.
I'll report benchmark results and index size impact here.
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