Github user cloud-fan commented on a diff in the pull request: https://github.com/apache/spark/pull/20023#discussion_r162064252 --- Diff: sql/catalyst/src/main/scala/org/apache/spark/sql/types/DecimalType.scala --- @@ -136,10 +137,52 @@ object DecimalType extends AbstractDataType { case DoubleType => DoubleDecimal } + private[sql] def forLiteral(literal: Literal): DecimalType = literal.value match { --- End diff -- but we also have `fromDecimal`...
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