gengliangwang commented on a change in pull request #25300: [SPARK-28503][SQL]
Return null result on cast an out-of-range value to a integral type
URL: https://github.com/apache/spark/pull/25300#discussion_r309051695
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/Cast.scala
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@@ -442,8 +452,16 @@ case class Cast(child: Expression, dataType: DataType,
timeZoneId: Option[String
buildCast[Int](_, d => null)
case TimestampType =>
buildCast[Long](_, t => timestampToLong(t))
+ case ByteType =>
+ b => b.asInstanceOf[Byte].toLong
+ case ShortType =>
+ b => b.asInstanceOf[Short].toLong
+ case IntegerType =>
+ b => b.asInstanceOf[Int].toLong
+ case _: DecimalType =>
+ b => castDecimalToLong(b.asInstanceOf[Decimal])
case x: NumericType =>
- b => x.numeric.asInstanceOf[Numeric[Any]].toLong(b)
+ b => castDecimalToLong(Decimal(b.toString))
Review comment:
Thanks. I have updated the code.
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