rangareddy commented on issue #16967: URL: https://github.com/apache/hudi/issues/16967#issuecomment-5391437380
This issue was reviewed as part of the JIRA-migrated backlog triage (HUDI-9299). **Findings: not implemented, and now actionable in this repository.** **Where this lives now.** The Trino Hudi connector was migrated into this repository by commit `c3c936790727` (RFC-105, #18837, 2026-07-27) and is the `hudi-trino/` module, with its own CI workflows. This ticket predates that move, so it reads as out of scope for `apache/hudi` - it is not. The connector already has an index-support framework to extend: `hudi-trino/src/main/java/io/trino/plugin/hudi/query/index/` contains `HudiBaseIndexSupport`, `HudiIndexSupport`, `IndexSupportFactory`, and concrete supports for column stats, partition stats, record-level index and secondary index (plus a `HudiNoOpIndexSupport` fallback). There is **no** expression-index support among them. Note the Hudi-side constraint: expression-index record generation is still Spark-only (`EngineIndexerSupport.generateExpressionIndexRecords`, with `UnsupportedEngineIndexerSupport` for other engines), so reading an existing expression index is a separate concern from writing one - worth confirming the read path is engine-neutral first. Keeping this open. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
