Maxim Gekk created SPARK-25048:
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Summary: Pivoting by multiple columns
Key: SPARK-25048
URL: https://issues.apache.org/jira/browse/SPARK-25048
Project: Spark
Issue Type: Improvement
Components: SQL
Affects Versions: 2.3.1
Reporter: Maxim Gekk
Need to change or extend existing API to make pivoting by multiple columns
possible. Users should be able to use many columns and values like in the
example:
{code:scala}
trainingSales
.groupBy($"sales.year")
.pivot(struct(lower($"sales.course"), $"training"), Seq(
struct(lit("dotnet"), lit("Experts")),
struct(lit("java"), lit("Dummies")))
).agg(sum($"sales.earnings"))
{code}
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