asolimando commented on PR #5376:
URL: https://github.com/apache/calcite/pull/5376#issuecomment-6526896251

   > Does a minor change that only expands the supported scope count as a 
breaking change? And does it not need to be declared?
   
   Thanks a lot @xiedeyantu for your review!
   
   I agree that it's "breaking" in the narrow sense, but downstream systems can 
now get different plans with potentially rippling effects, all this by using 
the default configuration for a built-in rule, I am leaning towards being on 
the safe side here.
   
   As a further data point, the "Breaking Changes" entry was required in 
similar cases like 
[CALCITE-5293](https://issues.apache.org/jira/browse/CALCITE-5293) (set-op 
`PruneEmptyRules`, see 
[#2915](https://github.com/apache/calcite/pull/2915#discussion_r976589860)).
   
   But if you feel strongly about it, I can remove it.


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