Reynold Xin created SPARK-11490:
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Summary: variance should alias var_samp instead of var_pop
Key: SPARK-11490
URL: https://issues.apache.org/jira/browse/SPARK-11490
Project: Spark
Issue Type: Sub-task
Components: SQL
Reporter: Reynold Xin
Assignee: Reynold Xin
stddev is an alias for stddev_samp. variance should be consistent.
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