jackye1995 commented on code in PR #6617:
URL: https://github.com/apache/iceberg/pull/6617#discussion_r1082118109
##########
spark/v3.3/spark-extensions/src/main/scala/org/apache/spark/sql/catalyst/parser/extensions/IcebergSqlExtensionsAstBuilder.scala:
##########
@@ -267,6 +286,12 @@ class IcebergSqlExtensionsAstBuilder(delegate:
ParserInterface) extends IcebergS
private def typedVisit[T](ctx: ParseTree): T = {
ctx.accept(this).asInstanceOf[T]
}
+
+ private def timeRetain(unit: String, duration: Long): Long =
unit.toUpperCase(Locale.ENGLISH) match {
+ case "MONTHS" => 30 * TimeUnit.DAYS.toMillis(duration)
Review Comment:
hmm, good point, there is not exactly always 30 days in a month. That's
probably why it is not supported by `TimeUnit`. So I would say in that case
let's remove MONTHS from the time unit in parser and just support DAYS, HOURS,
MINUTES and SECONDS
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