sdreynolds opened a new pull request, #2975: URL: https://github.com/apache/calcite/pull/2975
## Why: When rewriting the query for a semi join, the `JoinOnUniqueToSemiJoinRule` pushes a new project via `RelBuilder`. This project is *almost* a good copy of the original `Project` -- it is just missing the field names. ## How: This change uses `RelDataType` of the `Project` to get the field names for the new `Project` pushed on the `Relbuilder` stack. This is similar to what is done in `SemiJoinRule#perform` -- 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: commits-unsubscr...@calcite.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org