DISTRIBUTE BY should support expressions
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Key: HIVE-300
URL: https://issues.apache.org/jira/browse/HIVE-300
Project: Hadoop Hive
Issue Type: Improvement
Components: Query Processor
Affects Versions: 0.2.0, 0.3.0
Reporter: Zheng Shao
We should support this kind of query. Distribute By only generates the
hash-code, so it's easy to allow expressions (while it will be hard for Sort By
and Cluster By).
{code}
SELECT a.key, a.value FROM a
DISTRIBUTE BY rand()
{code}
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