maropu commented on a change in pull request #25708: [SPARK-28141][SQL] Support
special date values
URL: https://github.com/apache/spark/pull/25708#discussion_r321987878
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/util/DateFormatter.scala
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@@ -17,24 +17,30 @@
package org.apache.spark.sql.catalyst.util
-import java.time.LocalDate
+import java.time.{LocalDate, ZoneId}
import java.util.Locale
+import DateTimeUtils._
+
sealed trait DateFormatter extends Serializable {
def parse(s: String): Int // returns days since epoch
def format(days: Int): String
}
class Iso8601DateFormatter(
pattern: String,
+ zoneId: ZoneId,
locale: Locale) extends DateFormatter with DateTimeFormatterHelper {
@transient
private lazy val formatter = getOrCreateFormatter(pattern, locale)
override def parse(s: String): Int = {
- val localDate = LocalDate.parse(s, formatter)
- DateTimeUtils.localDateToDays(localDate)
+ val specialDate = convertSpecialDate(s.trim, zoneId)
Review comment:
Since casts from strings to date/tmestamp already does so, the trim looks
reasonable to me.
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