Peng-Lei commented on a change in pull request #32999:
URL: https://github.com/apache/spark/pull/32999#discussion_r655824124
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File path:
sql/core/src/test/scala/org/apache/spark/sql/ColumnExpressionSuite.scala
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@@ -2790,7 +2790,9 @@ class ColumnExpressionSuite extends QueryTest with
SharedSparkSession {
).foreach { case (end, start) =>
val df = Seq((end, start)).toDF("end", "start")
val daysBetween = Duration.ofDays(ChronoUnit.DAYS.between(start,
end))
- checkAnswer(df.select($"end" - $"start"), Row(daysBetween))
+ val r = df.select($"end" - $"start").toDF("diff")
+ checkAnswer(r, Row(daysBetween))
+ assert(r.schema === new StructType().add("diff",
DayTimeIntervalType(0, 0)))
Review comment:
> could you add tests for them too
@sarutak ,Sorry I am wrong. First I should exclude the `Date +/- Interval`
from this PR. Second Even if I wanted to change `Date +/- Interval`, I should
convert the interval to the number of days `ExtractANSIIntervalDays)` and then
use `DateAdd` expression as cloud-fan said.
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