maropu commented on a change in pull request #28342:
URL: https://github.com/apache/spark/pull/28342#discussion_r415230477
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/datetimeExpressions.scala
##########
@@ -62,7 +61,18 @@ trait TimeZoneAwareExpression extends Expression {
* There is no code generation since this expression should get constant
folded by the optimizer.
*/
@ExpressionDescription(
- usage = "_FUNC_() - Returns the current date at the start of query
evaluation.",
+ usage = """
+ _FUNC_() - Returns the current date at the start of query evaluation.
+
+ _FUNC_ - Returns the current date at the start of query evaluation.
+ """,
+ examples = """
+ Examples:
+ > SELECT _FUNC_();
+ 2020-04-25
+ > SELECT _FUNC_;
Review comment:
I found the PR to implement the syntax:
https://github.com/apache/spark/pull/14442
Spark without the hive support has supported it since 2.0. Yea, I'll add
this info as note.
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