cloud-fan commented on a change in pull request #23596: [SPARK-26652][SQL] Use
Proleptic Gregorian Calendar in Literal.fromString
URL: https://github.com/apache/spark/pull/23596#discussion_r249467071
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/parser/AstBuilder.scala
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@@ -1552,17 +1552,15 @@ class AstBuilder(conf: SQLConf) extends
SqlBaseBaseVisitor[AnyRef] with Logging
override def visitTypeConstructor(ctx: TypeConstructorContext): Literal =
withOrigin(ctx) {
val value = string(ctx.STRING)
val valueType = ctx.identifier.getText.toUpperCase(Locale.ROOT)
- def toLiteral[T](f: UTF8String => Option[T], t: DataType): Literal = {
- f(UTF8String.fromString(value)).map(Literal(_, t)).getOrElse {
+ def toLiteral(t: DataType): Literal = {
+ Try {Literal.fromString(value, t)}.getOrElse {
throw new ParseException(s"Cannot parse the $valueType value: $value",
ctx)
}
}
try {
valueType match {
- case "DATE" => toLiteral(stringToDate, DateType)
- case "TIMESTAMP" =>
- val timeZone = getTimeZone(SQLConf.get.sessionLocalTimeZone)
- toLiteral(stringToTimestamp(_, timeZone), TimestampType)
+ case "DATE" => toLiteral(DateType)
Review comment:
can we just do `Cast(Literal(str), DateType)`? Or
`Literal.create(Cast(...).eval, DateType)`
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