Yin Huai created SPARK-8599:
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Summary: Use a Random operator to handle Random distribution
generating expressions
Key: SPARK-8599
URL: https://issues.apache.org/jira/browse/SPARK-8599
Project: Spark
Issue Type: Improvement
Affects Versions: 1.4.0
Reporter: Yin Huai
Priority: Critical
Right now, we are using expressions for Random distribution generating
expressions. But, we have to track them in lots of places in the optimizer to
handle them carefully. Otherwise, these expressions will be treated as
stateless expressions and have unexpected behaviors (e.g. SPARK-8023).
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