Github user dilipbiswal commented on a diff in the pull request:
https://github.com/apache/spark/pull/22448#discussion_r219019110
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/TypeCoercion.scala
---
@@ -106,6 +107,22 @@ object TypeCoercion {
case (t1, t2) => findTypeForComplex(t1, t2, findTightestCommonType)
}
+ /**
+ * Finds a wider decimal type between the two supplied decimal types
without
+ * any loss of precision.
+ */
+ def findWiderDecimalType(d1: DecimalType, d2: DecimalType):
Option[DecimalType] = {
--- End diff --
@cloud-fan Sure.. will do.
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