isichei opened a new pull request #10461:
URL: https://github.com/apache/arrow/pull/10461


   Have added functionality in C++ code to allow users to define the arrow 
timestamp unit when reading parquet INT96 types. This avoids the overflow bug 
when trying to convert INT96 values which have dates which are out of bounds 
for Arrow NS Timestamp. 
   
   See added test: `TestArrowReadWrite.DownsampleDeprecatedInt96` which 
demonstrates use and expected results.
   
   Main discussion of changes in [JIRA Issue 
ARROW-12096](https://issues.apache.org/jira/browse/ARROW-12096).
   
   


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