Release - Federate 8.2.3 - 28.0

We’re happy to announce today the release of Siren Federate version 28 for Elasticsearch version 8.2.3. This release includes the following enhancements and fixes:

New features:

  • Added support for runtime fields defined at query time.
  • Added support to join on _id metadata field for semi-join queries. The projection of _id metadata field is not supported in the context of an inner join.


  • Upgraded to {es} 8.2.3
  • Upgraded Arrow to version 7.0.0.
  • Added various optimizations to the vectorized processing pipeline. Most noticeably:
    • When processing local transfer requests, data packets are directly serialized using arrowBuf.
    • Improved vectorization performance when projecting single-valued columns.
  • Added index-based scan strategy for keyword field type.
  • Implemented vectorization of distributed hash semi-join operations.
  • Implemented vectorization of distributed inner join operations.
  • Added support for a placeholder to represent the Elasticsearch configuration directory in the JDBC properties of a datasource configuration.

Bug fixes:

  • Fixed an issue that could prevent queries containing joins to be executed after a redistribution of shards in a cluster.
  • Fixed an issue that could cause a node to crash when handling an out of memory error during packet serialization.
  • Fixed an issue that could prevent joins on keyword fields across virtual indices from being executed.
  • Fixed fingerprinting of search request executions to match the result of explain requests.

Download it here.

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