Navis created SPARK-8285:
----------------------------
Summary: CombineSum should be calculated as unlimited decimal first
Key: SPARK-8285
URL: https://issues.apache.org/jira/browse/SPARK-8285
Project: Spark
Issue Type: Bug
Components: SQL
Reporter: Navis
Priority: Trivial
{code:title=GeneratedAggregate.scala}
case cs @ CombineSum(expr) =>
val calcType = expr.dataType
expr.dataType match {
case DecimalType.Fixed(_, _) =>
DecimalType.Unlimited
case _ =>
expr.dataType
}
{code}
calcType is always expr.dataType. credits are all belong to IntelliJ
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