viirya commented on a change in pull request #29756:
URL: https://github.com/apache/spark/pull/29756#discussion_r489195938
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/Analyzer.scala
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@@ -942,6 +957,47 @@ class Analyzer(
}
}
+ /**
+ * Replace [[UnresolvedRelation]] with concrete streaming logical plans.
+ */
+ object ResolveStreamingRelation extends Rule[LogicalPlan] {
+ override def apply(plan: LogicalPlan): LogicalPlan =
plan.resolveOperatorsUp {
+ case u: UnresolvedRelation if u.isStreaming =>
+ val res = lookupStreamingRelation(u.multipartIdentifier, u.options)
+ res.getOrElse(u)
+ }
+
+ // Look up a relation from the session catalog with the following logic:
+ // 1) If the resolved catalog is not session catalog, return None.
+ // 2) If a relation is not found in the catalog, return None.
+ // 3) If a v1 table is found, create a v1 relation. Otherwise, pass the
table to
+ // UnresolvedStreamingRelation.
Review comment:
hmm, I don't see `UnresolvedStreamingRelation`, is it missing?
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