cloud-fan commented on code in PR #38851:
URL: https://github.com/apache/spark/pull/38851#discussion_r1037757469
##########
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/Analyzer.scala:
##########
@@ -2109,6 +2110,51 @@ class Analyzer(override val catalogManager:
CatalogManager)
}
}
+ /**
+ * Resolves `UnresolvedAttribute` to `OuterReference` if we are resolving
subquery plans (when
+ * `AnalysisContext.get.outerPlan` is set).
+ */
+ object ResolveOuterReferences extends Rule[LogicalPlan] {
+ override def apply(plan: LogicalPlan): LogicalPlan = {
+ // Only apply this rule if we are resolving subquery plans.
+ if (AnalysisContext.get.outerPlan.isEmpty) return plan
+
+ // We must run these 3 rules first, as they also resolve
`UnresolvedAttribute` and have
+ // higher priority than outer reference resolution.
+ val prepared =
ResolveAggregateFunctions(ResolveMissingReferences(ResolveReferences(plan)))
+
prepared.resolveOperatorsDownWithPruning(_.containsPattern(UNRESOLVED_ATTRIBUTE))
{
+ // Handle `Generate` specially here, because
`Generate.generatorOutput` starts with
+ // `UnresolvedAttribute` but we should never resolve it to outer
references. It's a bit
+ // hacky that `Generate` uses `UnresolvedAttribute` to store the
generator column names,
+ // we should clean it up later.
+ case g: Generate if g.childrenResolved && !g.resolved =>
Review Comment:
existing tests failed without this change.
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org
For queries about this service, please contact Infrastructure at:
us...@infra.apache.org
---------------------------------------------------------------------
To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org
For additional commands, e-mail: reviews-h...@spark.apache.org
