Versions Compared

Old Version 1

changes.mady.by.user Michael Sokolov

Saved on

compared with

New Version Current

changes.mady.by.user Uwe Schindler

Saved on

Key

  • This line was added.
  • This line was removed.
  • Formatting was changed.

...

  • Added ShapeDocValues/Field, a unified abstraction to represent existing types: XY and lat/long.
  • FacetSets can now be filtered using a Query via MatchingFacetSetCounts.
  • SortField now allows control over whether to apply index-sort optimizations.
  • Support for Java 19 foreign memory access ("project Panama") was added. Applications started with command line parameter "java --enable-preview" will automatically use the new foreign memory API of Java 19 to access indexes on disk with MMapDirectory. This is an opt-in feature and requires explicit Java command line flag passed to your application's Java process (e.g., modify startup parameters of Solr or Elasticsearch/Opensearch)! When enabled, Lucene logs a notice using java.util.logging. Please test thoroughly and report bugs/slowness to Lucene's mailing list. When the new API is used, MMapDirectory will mmap Lucene indexes in chunks of 16 GiB (instead of 1 GiB) and indexes closed while queries are running can no longer crash the JVM.

Optimizations

  • Added support for dynamic pruning to queries sorted by a string field that is indexed with both terms and SORTED or SORTED_SET doc values. This can lead to dramatic speedups when applicable.

  • TermInSetQuery is optimized for the case when one of its terms matches all docs in a segment, and it now provides cost estimation, making it usable with IndexOrDocValuesQuery for better query planning.

  • KnnVector fields can now be stored with reduced (8-bit) precision, saving storage and yielding a small query latency improvement.

...