Adrien Grand created LUCENE-10581:
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Summary: Optimize stored fields merges on the first segment
Key: LUCENE-10581
URL: https://issues.apache.org/jira/browse/LUCENE-10581
Project: Lucene - Core
Issue Type: Improvement
Reporter: Adrien Grand
This is mostly repurposing LUCENE-10573. Even though our merge policies no
longer perform quadratic merging, it's still possible to configure them with
low merge factors (e.g. 2) or they might decide to create unbalanced merges
where the biggest segment of the merge accounts for a large part of the merge.
In such cases, copying compressed data directly still yields significant
benefits.
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