Takeshi Yamamuro created HIVEMALL-49:
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Summary: Add ordering & partitioning requirements for each_top_k
in GenerateExec
Key: HIVEMALL-49
URL: https://issues.apache.org/jira/browse/HIVEMALL-49
Project: Hivemall
Issue Type: Improvement
Reporter: Takeshi Yamamuro
Priority: Minor
Currently, we explicitly add sorting and partitioning operations for input
DataFrame (see:
https://github.com/apache/incubator-hivemall/blob/master/spark/spark-2.1/src/main/scala/org/apache/spark/sql/hive/HivemallOps.scala#L757).
This is not a smart way, so we need to add these requirements in GenerateExec.
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