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https://issues.apache.org/jira/browse/LUCENE-10409?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17489439#comment-17489439
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Feng Guo commented on LUCENE-10409:
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Hi [~jpountz] ! I'm seeing this issue is marked as a {{{}Task{}}}. I'm not
exactly sure what does this mean. Does it mean that someone can work on it if
he is interested in this issue? Feel free to ignore me if you already plan to
work on this. I just want to say that i'd like to take on this if you don't
have the time :)
> Improve BKDWriter's DocIdsWriter to better encode decreasing sequences of doc
> IDs
> ---------------------------------------------------------------------------------
>
> Key: LUCENE-10409
> URL: https://issues.apache.org/jira/browse/LUCENE-10409
> Project: Lucene - Core
> Issue Type: Task
> Reporter: Adrien Grand
> Priority: Minor
>
> [~gf2121] recently improved DocIdsWriter for the case when doc IDs are dense
> and come in the same order as values via the CONTINUOUS_IDS and BITSET_IDS
> encodings.
> We could do the same for the case when doc IDs come in the opposite order to
> values. This would be used whenever searching on a field that is used for
> index sorting in the descending order. This would be a frequent case for
> Elasticsearch users as we're planning on using index sorting more and more on
> time-based data with a descending sort on the timestamp as the last sort
> field.
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