Github user chenghao-intel commented on a diff in the pull request:
https://github.com/apache/spark/pull/6988#discussion_r35324086
--- Diff:
sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/expressions/DateExpressionsSuite.scala
---
@@ -246,4 +247,45 @@ class DateExpressionsSuite extends SparkFunSuite with
ExpressionEvalHelper {
}
}
+ test("datetime function current_date") {
+ val d0 = DateTimeUtils.millisToDays(System.currentTimeMillis())
+ val cd = CurrentDate().eval(EmptyRow).asInstanceOf[Int]
+ val d1 = DateTimeUtils.millisToDays(System.currentTimeMillis())
+ assert(d0 <= cd && cd <= d1 && d1 - d0 <= 1)
+ }
+
+ test("datetime function current_timestamp") {
+ val ct =
DateTimeUtils.toJavaTimestamp(CurrentTimestamp().eval(EmptyRow).asInstanceOf[Long])
+ val t1 = System.currentTimeMillis()
+ assert(math.abs(t1 - ct.getTime) < 5000)
+ }
+
+ test("function to_date") {
+ checkResult(ToDate(Literal("2015-07-22")), ToDate(Literal("2015-07-22
23:59:59")))
+ checkResult(
+ ToDate(Literal("2015-07-22")),
ToDate(Literal(Timestamp.valueOf("2015-07-22 23:59:59"))))
+ checkResult(ToDate(Literal("2015-07-22")), Date.valueOf("2015-07-22"))
+ }
+
+ test("function trunc") {
+ checkResult(
--- End diff --
Seems this will not trigger the codegen projections, you probably need to
use the `checkEvaluation` instead.
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