sandeep-katta commented on code in PR #38874:
URL: https://github.com/apache/spark/pull/38874#discussion_r1045736066
##########
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/collectionOperations.scala:
##########
@@ -4600,3 +4600,30 @@ case class ArrayExcept(left: Expression, right:
Expression) extends ArrayBinaryL
override protected def withNewChildrenInternal(
newLeft: Expression, newRight: Expression): ArrayExcept = copy(left =
newLeft, right = newRight)
}
+
+@ExpressionDescription(
+ usage = "_FUNC_(array) - Removes null values from the array.",
+ examples = """
+ Examples:
+ > SELECT _FUNC_(array(1, 2, 3, null));
+ [1,2,3]
+ """,
+ group = "array_funcs",
+ since = "3.4.0")
+case class ArrayCompact(child: Expression)
+ extends RuntimeReplaceable with UnaryLike[Expression] with ExpectsInputTypes
with NullIntolerant {
Review Comment:
I tried this this will give `StackOverflowError` exception.
Reason:
`child` is overridden method which in turn calls `replacement`
```
Code:
trait InheritAnalysisRules extends UnaryLike[Expression] { self:
RuntimeReplaceable =>
override def child: Expression = replacement
```
If I am trying to use `expr.dataType` this gives `UnresolvedException` which
is correct cz `replacement` is not yet resolved
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: [email protected]
For queries about this service, please contact Infrastructure at:
[email protected]
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
