Cheng Su created SPARK-39849:
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Summary: Dataset.as(StructType) fills missing new columns with
null value
Key: SPARK-39849
URL: https://issues.apache.org/jira/browse/SPARK-39849
Project: Spark
Issue Type: Improvement
Components: SQL
Affects Versions: 3.4.0
Reporter: Cheng Su
As a followup of
[https://github.com/apache/spark/pull/37011#discussion_r917700960] , it would
be great to fill missing new columns with null values, instead of failing out
loud. Note it would only work for nullable columns.
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