dongjoon-hyun commented on a change in pull request #25082: [SPARK-28310][SQL]
Support ANSI SQL grammar:first_value/last_value(expression, [ignore/respect
nulls])
URL: https://github.com/apache/spark/pull/25082#discussion_r301734462
##########
File path:
sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/parser/ExpressionParserSuite.scala
##########
@@ -737,6 +737,15 @@ class ExpressionParserSuite extends AnalysisTest {
assertEqual("last(a)", Last('a, Literal(false)).toAggregateExpression())
}
+ test("SPARK-28310 Support respect nulls keywords for first_value and
last_value") {
Review comment:
For a new feature and improvement test case, we don't use `SPARK-28310`.
```
- test("SPARK-28310 Support respect nulls keywords for first_value and
last_value") {
+ test("Support respect nulls keywords for first_value and last_value") {
```
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