kiszk commented on a change in pull request #25331: [SPARK-27768][SQL]
Infinity, -Infinity, NaN should be recognized in a case insensitive manner.
URL: https://github.com/apache/spark/pull/25331#discussion_r309976983
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/Cast.scala
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@@ -563,7 +573,17 @@ case class Cast(child: Expression, dataType: DataType,
timeZoneId: Option[String
private[this] def castToFloat(from: DataType): Any => Any = from match {
case StringType =>
buildCast[UTF8String](_, s => try s.toString.toFloat catch {
- case _: NumberFormatException => null
+ case _: NumberFormatException =>
+ val str = s.trim.toString
Review comment:
Can we merge lines 551-560 and 577-586 into one function? Since the return
type will be `Any`, we can merge two cases `Float` and `Double` into one.
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