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From "Zoltan Ivanfi (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HIVE-17844) Hive JDBC driver converts floats to doubles, changing values slightly
Date Thu, 19 Oct 2017 10:40:00 GMT
Zoltan Ivanfi created HIVE-17844:
------------------------------------

             Summary: Hive JDBC driver converts floats to doubles, changing values slightly
                 Key: HIVE-17844
                 URL: https://issues.apache.org/jira/browse/HIVE-17844
             Project: Hive
          Issue Type: Bug
          Components: JDBC
            Reporter: Zoltan Ivanfi


When querying data through Hive's JDBC driver, float values are automatically converted to
doubles and will slightly differ from values seen when directly querying the data using a
textual SQL interface.

Please note that by slight difference I don't only mean additional zeroes at the end, but
an actual difference in the value itself. This is a result of the float to double conversion,
as discussed [here|https://stackoverflow.com/questions/17504833/why-converting-from-float-to-double-changes-the-value],
for example.



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