yaooqinn commented on a change in pull request #28692:
URL: https://github.com/apache/spark/pull/28692#discussion_r433258038
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/util/DateFormatter.scala
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@@ -117,7 +117,16 @@ class LegacySimpleDateFormatter(pattern: String, locale:
Locale) extends LegacyD
object DateFormatter {
import LegacyDateFormats._
- val defaultLocale: Locale = Locale.US
+ /**
+ * This is change from Locale.US to GB, because:
+ * The first day-of-week varies by culture.
+ * For example, the US uses Sunday, while the United Kingdom and the
ISO-8601 standard use Monday.
Review comment:
We have `O`, `OOOO` and `ZZZZ` that are localized, but there are decided
by the `zoneID`(spark.sql.session.timeZone), not related to Locate here.
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