jorisvandenbossche opened a new pull request, #35505: URL: https://github.com/apache/arrow/pull/35505
### Rationale for this change During the refactor of the join cython code to use the new `pyarrow.acero` code, I accidentally ignored the `coalesce_keys=False` option. This PR restores the previous behaviour (by not passing a custom subset of column names to the HashJoinNode, but relying on its default behaviour to include all fields from left and right data (depending on the join type)). ### Are these changes tested? Expanded the existing tests to now properly cover the coalesce_keys=False option for all join types. ### Are there any user-facing changes? Fixes a regression in 12.0, restoring behaviour of 11.0 -- 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]
