[jira] [Updated] (SOLR-17775) Optimize ValueSourceAugmenter

["ASF GitHub Bot (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SOLR-17775?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

ASF GitHub Bot updated SOLR-17775:
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    Labels: pull-request-available  (was: )

> Optimize ValueSourceAugmenter
> -----------------------------
>
>                 Key: SOLR-17775
>                 URL: https://issues.apache.org/jira/browse/SOLR-17775
>             Project: Solr
>          Issue Type: Improvement
>          Components: search
>            Reporter: Yura
>            Priority: Minor
>              Labels: pull-request-available
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> h3. Problem
> ValueSourceAugmenter currently calculates function values on-demand during transform(), performing expensive binary searches and reader lookups for each document individually.
> h3. Solution
> Pre-calculate function values for all result set documents during setContext() by:
>  * Collecting and sorting document IDs from DocList
>  * Sequential iteration through sorted documents to calculate values once per reader segment
>  * Storing results in hash map for O(1) lookup during transform()
>  * Fallback to on-demand calculation for documents outside the pre-calculated set (RTG cases)
> h3. Performance Benefit
> Replaces repeated "find document at position N" operations (binary search per document) with efficient "get next document" iteration (sequential processing within reader segments), significantly reducing lookup overhead.
> h3. Compatibility
> Maintains full backward compatibility through fallback mechanism for edge cases.



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