MartinKolbAtWork commented on PR #12227:
URL: https://github.com/apache/datafusion/pull/12227#issuecomment-2322846560

   Hi @findepi ,
   thanks again for assisting me to get the PR in a “mergeable” state. Really 
appreciate your input. Your comment on the change regarding the timestamp 
behavior made me think that we might take one step back.
   These changes related to the timestamp handling were added to support 
negative years. The initial target for this PR is fixing the problem of 
handling years greater than 2262. I found your suggestion about supporting 
negative years very compelling, because it semantically addresses a similar 
edge case.
   
   Now that we found out that adding support for negative years does add 
several nitty-gritty details, that need to be carefully thought through, I 
suggest that we split this up and handle the negative years topic in a separate 
PR.
   I reverted the changes back to the point where it’s only about supporting 
years up to 9999. This makes the code simpler and easier to understand.
   Hope this makes sense for you.
   
   


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