Change the hashcode for DoubleWritable --------------------------------------
Key: HIVE-511
URL: https://issues.apache.org/jira/browse/HIVE-511
Project: Hadoop Hive
Issue Type: Bug
Reporter: Zheng Shao
The current DoubleWritable hashCode takes only the last 32 bits. This is a big
problem because for small integer values like 1.0, 2.0, 15.0, the hashCode are
all 0.
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