Github user yhuai commented on a diff in the pull request:
https://github.com/apache/spark/pull/7478#discussion_r34944166
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/LogicalPlan.scala
---
@@ -235,10 +254,13 @@ abstract class LogicalPlan extends
QueryPlan[LogicalPlan] with Logging {
}
}
+
// If none of attributes match `table.column` pattern, we try to
resolve it as a column.
if (candidates.isEmpty) {
candidates = input.flatMap { candidate =>
resolveAsColumn(nameParts, resolver, candidate)
+ } ++ input.flatMap { candidate =>
+ resolveAsVirtualColumn(nameParts, resolver, candidate)
--- End diff --
Actually, I am thinking we can have something like
```
// If none of attributes match `table.column` pattern, we try to resolve it
as a column.
if (candidates.isEmpty) {
candidates = input.flatMap { candidate =>
resolveAsColumn(nameParts, resolver, candidate)
}
}
// If none of attributes match `column` pattern, we try to resolve it as a
virtual column.
if (candidates.isEmpty) {
candidates = input.flatMap { candidate =>
resolveAsVirtualColumn(nameParts, resolver)
}
}
```
---
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]
