Github user marmbrus commented on a diff in the pull request:
https://github.com/apache/spark/pull/6173#discussion_r30537865
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/Expression.scala
---
@@ -76,6 +76,19 @@ abstract class Expression extends TreeNode[Expression] {
case u: UnresolvedAttribute => PrettyAttribute(u.name)
}.toString
}
+
+ /**
+ * Returns true if 2 expressions are equal in semantic, which is similar
to equals method
--- End diff --
Returns true when two expressions will always compute the same result, even
if they differ cosmetically (i.e. capitalization of names in attributes may be
different).
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at [email protected] or file a JIRA ticket
with INFRA.
---
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
