Liang-Chi Hsieh created SPARK-22001:
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Summary: ImputerModel can do withColumn for all input columns at
one pass
Key: SPARK-22001
URL: https://issues.apache.org/jira/browse/SPARK-22001
Project: Spark
Issue Type: Improvement
Components: SQL
Affects Versions: 2.2.0
Reporter: Liang-Chi Hsieh
SPARK-21690 makes one-pass {{Imputer}} by parallelizing the computation of all
input columns. When we transform dataset with {{ImputerModel}}, we do
{{withColumn}} on all input columns sequentially. We can also do this on all
input columns at once.
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