[jira] [Created] (HIVE-20204) Type conversion during IN () comparisons is using different rules from other comparison operations

["Jason Dere (JIRA)" <ji...@apache.org>]

Jason Dere created HIVE-20204:
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             Summary: Type conversion during IN () comparisons is using different rules from other comparison operations
                 Key: HIVE-20204
                 URL: https://issues.apache.org/jira/browse/HIVE-20204
             Project: Hive
          Issue Type: Bug
          Components: Types
            Reporter: Jason Dere
            Assignee: Jason Dere


Noticed this while looking at HIVE-20082.
The type conversion done during GenericUDFIn (via ReturnObjectInspectorResolver) uses FunctionRegistry.getCommonClass(), whereas the other comparison operators (=, <, >, <=, >=) use FunctionRegistry.getCommonClassForComparison(). As a result, dec_column IN ('1.1', '2.2') compares the values as strings, whereas dec_column = '1.1' would compare the values as doubles. This makes a difference for HIVE-20082 since it is related to changing the 0-padding during decimal-to-string conversions.

cc [~ashutoshc]



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