[ 
https://issues.apache.org/jira/browse/SOLR-18251?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18096641#comment-18096641
 ] 

Vadim Kirilchuk edited comment on SOLR-18251 at 7/16/26 1:30 AM:
-----------------------------------------------------------------

Added links to lucene pull request which introduced doc values skip index.

And link to parent lucene issue that pull request originated from.


was (Author: vkirilchuk):
Lucene pull request which introduced doc values skip index. 

> Add Solr schema support for DocValues skip lists
> ------------------------------------------------
>
>                 Key: SOLR-18251
>                 URL: https://issues.apache.org/jira/browse/SOLR-18251
>             Project: Solr
>          Issue Type: Task
>          Components: Schema and Analysis
>    Affects Versions: 10.1
>            Reporter: Sanjay Dutt
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 50m
>  Remaining Estimate: 0h
>
> Lucene introduced optional skip lists on top of DocValues in 
> apache/lucene#13449. The feature is exposed through the {{DocValuesSkipper}} 
> abstraction and is controlled by a Lucene {{FieldType}} flag.
> Solr currently exposes DocValues through schema configuration, but does not 
> provide a schema-level option to enable this DocValues skip list support.
> This issue proposes adding an opt-in Solr schema option, such as:
> {code:java}
> docValuesSkipList="true"{code}
> Example:
> {code:java}
> <field name="price"
>        type="plong"
>        indexed="false"
>        docValues="true"
>        docValuesSkipList="true" />{code}
> The Lucene PR notes that this can be efficient when the index is sorted and 
> the field belongs to the index sorting. 
> The actual benefit depends on data layout and query pattern, so this should 
> be exposed as an opt-in feature.
> Only compatible DocValues field types should allow this option. Based on the 
> Lucene PR, this applies to DocValues types such as {{{}NUMERIC{}}}, 
> {{{}SORTED_NUMERIC{}}}, {{{}SORTED{}}}, and {{{}SORTED_SET{}}}. 



--
This message was sent by Atlassian Jira
(v8.20.10#820010)

---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]

Reply via email to