MaxGekk commented on a change in pull request #31810:
URL: https://github.com/apache/spark/pull/31810#discussion_r592521765
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/types/YearMonthIntervalType.scala
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@@ -54,6 +54,8 @@ class YearMonthIntervalType private() extends AtomicType {
override def defaultSize: Int = 4
private[spark] override def asNullable: YearMonthIntervalType = this
+
+ override def typeName: String = "year-month interval"
Review comment:
1. I haven't found any places in the SQL standard where `year-month` and
`day-time` are used without the `interval(s)` word(s).
2. Actual type name is `INTERVAL`, `year-month` and `day-time` just define
(sub-)classes of the type.
3. Since the `typeName()` method is used in error messages, I do believe we
should leave `interval` in type names for readability.
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