Yura created SOLR-17775:
---------------------------
Summary: Optimize ValueSourceAugmenter
Key: SOLR-17775
URL: https://issues.apache.org/jira/browse/SOLR-17775
Project: Solr
Issue Type: Improvement
Components: search
Reporter: Yura
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.
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
