zhengruifeng created SPARK-19573:
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Summary: Make NaN/null handling consistent in approxQuantile
Key: SPARK-19573
URL: https://issues.apache.org/jira/browse/SPARK-19573
Project: Spark
Issue Type: Bug
Components: SQL
Affects Versions: 2.2.0
Reporter: zhengruifeng
As discussed in https://github.com/apache/spark/pull/16776, this jira is used
to track the following issue:
Multi-column version of approxQuantile drop the rows containing *any* NaN/null,
the results are not consistent with outputs of the single-version.
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