[GitHub] [spark] yaooqinn commented on pull request #28674: [SPARK-31868][SQL] Restore the parsing behaviour week-based-year for 2.4

[GitBox <gi...@apache.org>]

yaooqinn commented on pull request #28674:
URL: https://github.com/apache/spark/pull/28674#issuecomment-636718215


   > Can we define the 2.4 behavior first? The behavior looks very weird to me. 
   
   I found it very difficult to follow the behavior of 2.4. It is also hard to fully define it.
   
   > If it doesn't make sense, we can narrow down the scope or even forbid it.
   
   I agree that we can narrow down the scope of our new formatter
   
   First of all, I suggest that we fail the 'Y' field to work with other non-week-based date fields y/M/L/d, etc as they are silently omitted.
   
   


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