gabotechs commented on PR #18739:
URL: https://github.com/apache/datafusion/pull/18739#issuecomment-3605366875

   >  It’s been quite stable for a long time, do you expect it to change soon?
   
   I personally would love to try extending this `OptimizerContext` struct for 
giving a shot to https://github.com/apache/datafusion/issues/18296. Made 
already an attempt in https://github.com/gabotechs/datafusion/pull/7 that was 
not very satisfactory as just having access to the `SessionConfig` during an 
optimization pass forces the approach to inject further things in 
`SessionConfig.extensions` as opaque `Any` types, but having an 
`OptimizerContext` that can be extended with new fields opens the door to a 
more elegant solution.


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