Xiao Li created SPARK-14085:
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Summary: Star Expansion for Hash and Concat
Key: SPARK-14085
URL: https://issues.apache.org/jira/browse/SPARK-14085
Project: Spark
Issue Type: Improvement
Components: SQL
Affects Versions: 2.0.0
Reporter: Xiao Li
To support star expansion, we can do it like,
{code}
val structDf = testData2.select("a", "b").as("record")
structDf.select(hash($"*")
structDf.select(concat($"*"))
{code}
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