Github user rxin commented on a diff in the pull request:
https://github.com/apache/spark/pull/10762#discussion_r51182690
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/basicOperators.scala
---
@@ -171,13 +171,17 @@ case class Join(
def selfJoinResolved: Boolean =
left.outputSet.intersect(right.outputSet).isEmpty
- // Joins are only resolved if they don't introduce ambiguous expression
ids.
- override lazy val resolved: Boolean = {
+ lazy val partlyResolved: Boolean = {
childrenResolved &&
expressions.forall(_.resolved) &&
selfJoinResolved &&
condition.forall(_.dataType == BooleanType)
}
+ // Joins are only resolved if they don't introduce ambiguous expression
ids.
--- End diff --
1. add a blank line above
2. we need to explain what the different resolution modes are.
3. I don't think partlyResolved is a good name -- it doesn't really explain
anything, e.g. which part?
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