[jira] [Created] (HIVE-5565) Limit Hive decimal type maximum precision and scale to 38

["Xuefu Zhang (JIRA)" <ji...@apache.org>]

Xuefu Zhang created HIVE-5565:
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             Summary: Limit Hive decimal type maximum precision and scale to 38
                 Key: HIVE-5565
                 URL: https://issues.apache.org/jira/browse/HIVE-5565
             Project: Hive
          Issue Type: Task
          Components: Types
    Affects Versions: 0.13.0
            Reporter: Xuefu Zhang
            Assignee: Xuefu Zhang
             Fix For: 0.13.0


With HIVE-3976, the maximum precision is set to 65, and maximum scale is to 30. After discussing with several folks in the community, it's determined that 38 as a maximum for both precision and scale are probably sufficient, in addition to the potential performance boost that might become possible to some implementation.

This task is to make such a change. The change is expected to be trivial, but it may impact many test cases. The reason for a separate JIRA is that patch in HIVE-3976 is already in a good shape. Rather than destabilizing a bigger patch, a dedicate patch will facilitates both reviews.



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