liukun4515 opened a new issue, #3523:
URL: https://github.com/apache/arrow-datafusion/issues/3523

   **Is your feature request related to a problem or challenge? Please describe 
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   I have implemented the feature about decimal in the datafusion. But didn't 
take care about some special case.
   Specially when do the arithmetic operation: 
   1. loss of the precision, In many case, the intermediate result will be 
overflow, So we use the float32 or float64 as the intermediate which will cause 
the the issue of loss of precision
   2. overflow/out of the range
   
   
   We can list all the bug issue in there
   
   
   
   We can list all the behavior which should be changed in the datafusion for 
the decimal
   
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