Github user rxin commented on a diff in the pull request:
https://github.com/apache/spark/pull/7644#discussion_r35490360
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/datetimeFunctions.scala
---
@@ -247,14 +248,112 @@ case class DateFormatClass(left: Expression, right:
Expression) extends BinaryEx
override protected def nullSafeEval(timestamp: Any, format: Any): Any = {
val sdf = new SimpleDateFormat(format.toString)
- UTF8String.fromString(sdf.format(new Date(timestamp.asInstanceOf[Long]
/ 1000)))
+ UTF8String.fromString(sdf.format(new
java.util.Date(timestamp.asInstanceOf[Long] / 1000)))
}
override def genCode(ctx: CodeGenContext, ev: GeneratedExpressionCode):
String = {
val sdf = classOf[SimpleDateFormat].getName
defineCodeGen(ctx, ev, (timestamp, format) => {
s"""UTF8String.fromString((new $sdf($format.toString()))
- .format(new java.sql.Date($timestamp / 1000)))"""
+ .format(new java.sql.Timestamp($timestamp / 1000)))"""
--- End diff --
why is this changed to Timestamp?
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