zgramana opened a new pull request #2747: URL: https://github.com/apache/calcite/pull/2747
Per email group, this captures a change in behavior from 1.24 to 1.29. In 1.24, `UNION` and `UNION ALL` query plans were identical, with the exception of the `EnumerableUnion.all` value. In 1.29, the reproduced plan eliminates some `LogicalProject` nodes, resulting in the inability to pushdown projections of very wide tables, causing performance to regress sometimes rather a lot -- 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]
