Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/11822#discussion_r56810191
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/namedExpressions.scala
---
@@ -122,17 +122,17 @@ abstract class Attribute extends LeafExpression with
NamedExpression {
* @param name The name to be associated with the result of computing
[[child]].
* @param exprId A globally unique id used to check if an
[[AttributeReference]] refers to this
* alias. Auto-assigned if left blank.
- * @param qualifiers A list of strings that can be used to referred to
this attribute in a fully
+ * @param qualifier A list of strings that can be used to referred to this
attribute in a fully
--- End diff --
we need to update the comment.
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