BeamSideInputJoinRel should swap nodes in the Rule, not in expand
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dsl
improvement
P3
sql
- Dominant language
- Java
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Description
BeamSideInputJoinRel conditionally swaps the order of inputs in expand. This makes the code very difficult to debug from customer logs. We should do the swapping in the Rule instead so the physical implementation logs actually reflect the physical implementation.
Imported from Jira [BEAM-10477](https://issues.apache.org/jira/browse/BEAM-10477). Original Jira may contain additional context.
Reported by: apilloud.
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