SOLR-18304: Optimize collapse performance for String fields in Solr 9.x and later#4621

Merged

dsmiley merged 14 commits into

apache:mainfrom

bartoszfidrysiak:SOLR-18304-collapse-string-sort

Jul 13, 2026

Commits on Jul 10, 2026

reviewfix: Removed fetching actual segments from solr query. It was redundant.
bartoszfidrysiak
committed
reviewfix: Set 'type' equal to 'changed' type in changelog file
bartoszfidrysiak
committed
reviewfix: Changed 'title' field in the changelog file to make it compatible with PR title
bartoszfidrysiak
committed
reviewfix: Used pattern matching for instanceof in new code inside testAndSetGroupValues method
bartoszfidrysiak
committed
reviewfix: Removed empty line in CollapsingSearch to satisfy :solr:benchmark:spotlessJavaCheck
bartoszfidrysiak
committed
reviewfix: Moved BytesRef.deepCopyOf from LazyStringValue.java to CollapsingQParserPlugin.java
bartoszfidrysiak
committed

Commits on Jul 13, 2026