HyukjinKwon commented on code in PR #57318:
URL: https://github.com/apache/spark/pull/57318#discussion_r3611495808
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/variant/variantExpressions.scala:
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@@ -119,6 +119,42 @@ case class IsVariantNull(child: Expression) extends
UnaryExpression
copy(child = newChild)
}
+// scalastyle:off line.size.limit
+@ExpressionDescription(
+ usage = "_FUNC_(v) - Returns a variant value with all the null-valued fields
removed from its variant objects, applied recursively. Returns NULL if the
input is NULL.",
Review Comment:
Let's problaby add the descriptions for arguments as well. I am trying to
document them all. Please refer to https://github.com/apache/spark/pull/57185
https://github.com/apache/spark/pull/57184
https://github.com/apache/spark/pull/57183
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